फलन (f(x)=|x-5|-2) के आलेख का शीर्ष कौन सा है?
What is the vertex of the graph of (f(x)=|x-5|-2)?
#standard-functions
#modulus-graph
#vertex
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A ((5,-2))
B ((-5,-2))
C ((5,2))
D ((-2,5))
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Correct Answer
A. ((5,-2))
Explanation
Simple Explanation
(|x-5|) शून्य (x=5) पर होता है और बाहर (-2) जुड़ता है। इसलिए शीर्ष ((5,-2)) है। / (|x-5|) becomes zero at (x=5), and (-2) is added outside. So the vertex is ((5,-2)).
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फलन (f(x)=|2x+4|+1) का न्यूनतम मान क्या है?
What is the minimum value of (f(x)=|2x+4|+1)?
#standard-functions
#modulus-graph
#minimum
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A (1)
B (0)
C (2)
D (-1)
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Explanation
Simple Explanation
मापांक का न्यूनतम मान (0) होता है। इसलिए (|2x+4|+1) का न्यूनतम मान (1) है। / The minimum value of a modulus is (0). Therefore the minimum value of (|2x+4|+1) is (1).
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फलन (f(x)=|3x-9|) का शीर्ष किस (x) मान पर है?
At which (x)-value is the vertex of (f(x)=|3x-9|)?
#standard-functions
#modulus-graph
#inside-zero
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A (x=3)
B (x=9)
C (x=-3)
D (x=0)
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Explanation
Simple Explanation
शीर्ष तब मिलता है जब (3x-9=0)। इससे (x=3) मिलता है। / The vertex occurs when (3x-9=0). This gives (x=3).
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फलन (f(x)=2|x+2|-6) के (x)-अक्ष प्रतिच्छेद कौन से हैं?
What are the (x)-intercepts of (f(x)=2|x+2|-6)?
#standard-functions
#modulus-graph
#x-intercepts
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A (x=1) और (x=-5) / (x=1) and (x=-5)
B (x=3) और (x=-3) / (x=3) and (x=-3)
C (x=2) और (x=-6) / (x=2) and (x=-6)
D (x=0) और (x=-4) / (x=0) and (x=-4)
Explanation opens after your attempt
Correct Answer
A. (x=1) और (x=-5) / (x=1) and (x=-5)
Explanation
Simple Explanation
(2|x+2|-6=0) से (|x+2|=3) मिलता है। इसलिए (x=1) और (x=-5) हैं। / From (2|x+2|-6=0), we get (|x+2|=3). So (x=1) and (x=-5).
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फलन (f(x)=-|x-1|+4) का अधिकतम मान क्या है?
What is the maximum value of (f(x)=-|x-1|+4)?
#standard-functions
#modulus-graph
#maximum
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A (4)
B (1)
C (0)
D (-4)
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Explanation
Simple Explanation
क्योंकि \(|x-1|\ge 0\), इसलिए \(-|x-1|+4\le 4\)। अधिकतम मान (4) (x=1) पर मिलता है। / Since \(|x-1|\ge 0\), \(-|x-1|+4\le 4\). The maximum value (4) occurs at (x=1).
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फलन (f(x)=|x-2|+|x-6|) का (x=4) पर मान क्या है?
What is the value of (f(x)=|x-2|+|x-6|) at (x=4)?
#standard-functions
#modulus-graph
#evaluation
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A (4)
B (2)
C (6)
D (0)
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Explanation
Simple Explanation
(f(4)=|2|+|-2|=2+2=4)। मापांक के दोनों भाग अलग से निकालें। / (f(4)=|2|+|-2|=2+2=4). Evaluate both modulus parts separately.
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फलन (f(x)=|x+4|-|x-2|) का (x=-1) पर मान क्या है?
What is the value of (f(x)=|x+4|-|x-2|) at (x=-1)?
#standard-functions
#modulus-graph
#value
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A (0)
B (6)
C (-6)
D (3)
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Explanation
Simple Explanation
(f(-1)=|3|-|-3|=3-3=0)। चिन्ह बदलने से पहले मापांक का मान लें। / (f(-1)=|3|-|-3|=3-3=0). Take the modulus values before subtracting.
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फलन (f(x)=3(x-1)2 -12) के (x)-अक्ष प्रतिच्छेद कौन से हैं?
What are the (x)-intercepts of (f(x)=3(x-1)2 -12)?
#standard-functions
#quadratic-graph
#x-intercepts
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A (x=-1) और (x=3) / (x=-1) and (x=3)
B (x=1) और (x=3) / (x=1) and (x=3)
C (x=-3) और (x=1) / (x=-3) and (x=1)
D (x=-2) और (x=4) / (x=-2) and (x=4)
Explanation opens after your attempt
Correct Answer
A. (x=-1) और (x=3) / (x=-1) and (x=3)
Explanation
Simple Explanation
(3(x-1)2 -12=0) से ((x-1)2 =4) मिलता है। इसलिए (x=-1) और (x=3) हैं। / From (3(x-1)2 -12=0), we get ((x-1)2 =4). So (x=-1) and (x=3).
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फलन (f(x)=x-2 +8x+15) के शून्यक कौन से हैं?
What are the zeros of (f(x)=x-2 +8x+15)?
#standard-functions
#quadratic-graph
#zeros
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A (x=-3) और (x=-5) / (x=-3) and (x=-5)
B (x=3) और (x=5) / (x=3) and (x=5)
C (x=-1) और (x=-15) / (x=-1) and (x=-15)
D (x=0) और (x=-8) / (x=0) and (x=-8)
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Correct Answer
A. (x=-3) और (x=-5) / (x=-3) and (x=-5)
Explanation
Simple Explanation
(x-2 +8x+15=(x+3)(x+5))। इसलिए शून्यक (x=-3) और (x=-5) हैं। / (x-2 +8x+15=(x+3)(x+5)). Therefore the zeros are (x=-3) and (x=-5).
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फलन (f(x)=x-2 -10x+21) का सममिति अक्ष कौन सा है?
What is the axis of symmetry of (f(x)=x-2 -10x+21)?
#standard-functions
#quadratic-graph
#axis-symmetry
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A (x=5)
B (x=-5)
C (y=5)
D (x=10)
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Explanation
Simple Explanation
सममिति अक्ष \(x=-\frac{b}{2a}\) होता है। यहां (a=1) और (b=-10), इसलिए (x=5)। / The axis of symmetry is \(x=-\frac{b}{2a}\). Here (a=1) and (b=-10), so (x=5).
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फलन (f(x)=2x-2 -8x+1) के आलेख का सममिति अक्ष क्या है?
What is the axis of symmetry of the graph of (f(x)=2x-2 -8x+1)?
#standard-functions
#quadratic-graph
#symmetry-axis
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A (x=2)
B (x=-2)
C (x=4)
D (y=2)
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Explanation
Simple Explanation
\(x=-\frac{b}{2a}\) में (a=2) और (b=-8) रखें। इससे (x=2) मिलता है। / Put (a=2) and (b=-8) in \(x=-\frac{b}{2a}\). This gives (x=2).
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फलन (f(x)=x-2 +2x+5) का न्यूनतम मान क्या है?
What is the minimum value of (f(x)=x-2 +2x+5)?
#standard-functions
#quadratic-graph
#minimum
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A (4)
B (5)
C (1)
D (-4)
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Explanation
Simple Explanation
(x-2 +2x+5=(x+1)2 +4)। इसलिए न्यूनतम मान (4) है। / (x-2 +2x+5=(x+1)2 +4). Therefore the minimum value is (4).
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फलन (f(x)=-x-2 +6x-5) का अधिकतम मान क्या है?
What is the maximum value of (f(x)=-x-2 +6x-5)?
#standard-functions
#quadratic-graph
#maximum
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A (4)
B (5)
C (3)
D (-4)
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Explanation
Simple Explanation
(-x-2 +6x-5=-(x-3)2 +4)। इसलिए अधिकतम मान (4) है। / (-x-2 +6x-5=-(x-3)2 +4). Therefore the maximum value is (4).
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फलन (f(x)=\sqrt{x+6}-2) का प्रारंभिक बिंदु कौन सा है?
What is the starting point of (f(x)=\sqrt{x+6}-2)?
#standard-functions
#square-root-graph
#start-point
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A ((-6,-2))
B ((6,-2))
C ((-6,2))
D ((0,-2))
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Correct Answer
A. ((-6,-2))
Explanation
Simple Explanation
\(\sqrt{x+6}\) (x=-6) से शुरू होता है और बाहर (-2) जुड़ता है। इसलिए प्रारंभिक बिंदु ((-6,-2)) है। / \(\sqrt{x+6}\) starts at (x=-6), and (-2) is added outside. So the starting point is ((-6,-2)).
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फलन (f(x)=3-\sqrt{x-1}) का अधिकतम मान क्या है?
What is the maximum value of (f(x)=3-\sqrt{x-1})?
#standard-functions
#square-root-graph
#maximum
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A (3)
B (1)
C (0)
D कोई अधिकतम नहीं / No maximum
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Explanation
Simple Explanation
\(\sqrt{x-1}\ge 0\), इसलिए \(3-\sqrt{x-1}\le 3\)। अधिकतम मान (3) (x=1) पर मिलता है। / Since \(\sqrt{x-1}\ge 0\), \(3-\sqrt{x-1}\le 3\). The maximum value (3) occurs at (x=1).
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फलन (f(x)=2\sqrt{x+1}-5) का परिसर क्या है?
What is the range of (f(x)=2\sqrt{x+1}-5)?
#standard-functions
#square-root-graph
#range
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A \([-5,\infty\))
B (\(-\infty,-5]\)
C \([0,\infty\))
D \(\mathbb{R}\)
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Correct Answer
A. \([-5,\infty\))
Explanation
Simple Explanation
\(\sqrt{x+1}\ge 0\), इसलिए \(2\sqrt{x+1}-5\ge -5\)। अतः परिसर \([-5,\infty\)) है। / Since \(\sqrt{x+1}\ge 0\), \(2\sqrt{x+1}-5\ge -5\). Hence the range is \([-5,\infty\)).
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फलन (f(x)=\frac{1}{x-5}+2) का ऊर्ध्व आसिम्प्टोट कौन सा है?
What is the vertical asymptote of (f(x)=\frac{1}{x-5}+2)?
#standard-functions
#reciprocal-graph
#vertical-asymptote
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A (x=5)
B (x=-5)
C (y=2)
D (y=0)
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Explanation
Simple Explanation
हर (x-5) शून्य नहीं हो सकता। इसलिए ऊर्ध्व आसिम्प्टोट (x=5) है। / The denominator (x-5) cannot be zero. Therefore the vertical asymptote is (x=5).
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फलन (f(x)=\frac{3}{x+2}-1) का क्षैतिज आसिम्प्टोट कौन सा है?
What is the horizontal asymptote of (f(x)=\frac{3}{x+2}-1)?
#standard-functions
#reciprocal-graph
#horizontal-asymptote
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A (y=-1)
B (x=-2)
C (y=0)
D (x=3)
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Explanation
Simple Explanation
बड़े (|x|) पर \(\frac{3}{x+2}\) (0) के पास जाता है। इसलिए क्षैतिज आसिम्प्टोट (y=-1) है। / For large (|x|), \(\frac{3}{x+2}\) approaches (0). So the horizontal asymptote is (y=-1).
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फलन (f(x)=\frac{1}{x+4}+6) का परिसर कौन सा है?
What is the range of (f(x)=\frac{1}{x+4}+6)?
#standard-functions
#reciprocal-graph
#range
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A (\(-\infty,6\)\cup\(6,\infty\))
B \([6,\infty\))
C (\(-\infty,\infty\))
D ((0,6))
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Correct Answer
A. (\(-\infty,6\)\cup\(6,\infty\))
Explanation
Simple Explanation
\(\frac{1}{x+4}\) कभी (0) नहीं होता। इसलिए (f(x)) कभी (6) नहीं होता। / \(\frac{1}{x+4}\) is never (0). Therefore (f(x)) is never (6).
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फलन (f(x)=\frac{-2}{x-3}) का आलेख किन चतुर्थांशों में स्थानांतरित आसिम्प्टोट के सापेक्ष होता है?
Relative to its shifted asymptotes, in which branches does (f(x)=\frac{-2}{x-3}) lie?
#standard-functions
#reciprocal-graph
#branches
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A द्वितीय और चतुर्थ जैसे / Like second and fourth
B प्रथम और तृतीय जैसे / Like first and third
C केवल प्रथम जैसे / Like only first
D केवल तृतीय जैसे / Like only third
Explanation opens after your attempt
Correct Answer
A. द्वितीय और चतुर्थ जैसे / Like second and fourth
Explanation
Simple Explanation
\(\frac{-2}{x-3}\) में गुणांक ऋणात्मक है। इसलिए इसकी शाखाएं मूल \(-\frac{1}{x}\) जैसी विपरीत चतुर्थांशों में होती हैं। / The coefficient in \(\frac{-2}{x-3}\) is negative. So its branches are like \(-\frac{1}{x}\) in opposite quadrants.
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फलन (f(x)=\frac{1}{(x+2)2 }) का ऊर्ध्व आसिम्प्टोट कौन सा है?
What is the vertical asymptote of (f(x)=\frac{1}{(x+2)2 })?
#standard-functions
#reciprocal-square-graph
#asymptote
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A (x=-2)
B (x=2)
C (y=0)
D (y=-2)
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Explanation
Simple Explanation
हर ((x+2)2 ) शून्य होने पर फलन परिभाषित नहीं रहता। इसलिए (x=-2) ऊर्ध्व आसिम्प्टोट है। / The function is not defined when ((x+2)2 ) is zero. So (x=-2) is the vertical asymptote.
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फलन (f(x)=\frac{2}{(x-1)2 }-3) का परिसर क्या है?
What is the range of (f(x)=\frac{2}{(x-1)2 }-3)?
#standard-functions
#reciprocal-square-graph
#range
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A (\(-3,\infty\))
B \([-3,\infty\))
C (\(-\infty,-3\))
D \(\mathbb{R}\)
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Correct Answer
A. (\(-3,\infty\))
Explanation
Simple Explanation
(\frac{2}{(x-1)2 }) हमेशा धनात्मक है लेकिन (0) नहीं होता। इसलिए फलन (-3) से बड़ा रहता है। / (\frac{2}{(x-1)2 }) is always positive but never (0). Therefore the function remains greater than (-3).
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फलन (f(x)=-\frac{3}{(x+1)2 }+2) का परिसर क्या है?
What is the range of (f(x)=-\frac{3}{(x+1)2 }+2)?
#standard-functions
#reciprocal-square-graph
#negative-range
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A (\(-\infty,2\))
B (\(2,\infty\))
C (\(-\infty,2]\)
D \([2,\infty\))
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Correct Answer
A. (\(-\infty,2\))
Explanation
Simple Explanation
(-\frac{3}{(x+1)2 }) हमेशा ऋणात्मक होता है और (0) नहीं बनता। इसलिए (f(x)) हमेशा (2) से कम है। / (-\frac{3}{(x+1)2 }) is always negative and never becomes (0). So (f(x)) is always less than (2).
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फलन (f(x)=\operatorname{sgn}(3x-12)) में (x>4) होने पर मान क्या होगा?
For (f(x)=\operatorname{sgn}(3x-12)), what is the value when (x>4)?
#standard-functions
#signum-graph
#interval
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A (1)
B (0)
C (-1)
D (3)
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Explanation
Simple Explanation
यदि (x>4), तो (3x-12>0)। इसलिए साइनम मान (1) है। / If (x>4), then (3x-12>0). Therefore the signum value is (1).
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फलन (f(x)=\operatorname{sgn}(2-x)) में (x>2) होने पर मान क्या होगा?
For (f(x)=\operatorname{sgn}(2-x)), what is the value when (x>2)?
#standard-functions
#signum-graph
#inequality
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A (-1)
B (1)
C (0)
D (2)
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Explanation
Simple Explanation
यदि (x>2), तो (2-x<0)। इसलिए (\operatorname{sgn}(2-x)=-1) है। / If (x>2), then (2-x<0). Hence (\operatorname{sgn}(2-x)=-1).
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फलन (f(x)=\operatorname{sgn}(x+7)) किस (x) पर शून्य होता है?
At which (x)-value does (f(x)=\operatorname{sgn}(x+7)) become zero?
#standard-functions
#signum-graph
#zero-point
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A (x=-7)
B (x=7)
C (x=0)
D (x=1)
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Explanation
Simple Explanation
साइनम फलन शून्य तब होता है जब अंदर की राशि शून्य हो। (x+7=0) से (x=-7) मिलता है। / The signum function is zero when the inside expression is zero. From (x+7=0), we get (x=-7).
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फलन (f(x)=\lfloor x-3\rfloor) में (x=5.9) पर मान क्या है?
What is the value of (f(x)=\lfloor x-3\rfloor) at (x=5.9)?
#standard-functions
#greatest-integer-graph
#value
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A (2)
B (3)
C (2.9)
D (5)
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Explanation
Simple Explanation
(x-3=2.9) और \(\lfloor 2.9\rfloor=2\)। पहले अंदर का मान निकालें। / Here (x-3=2.9), and \(\lfloor 2.9\rfloor=2\). First find the inside value.
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फलन (f(x)=\lfloor 3x\rfloor) में (x=-0.4) पर मान क्या है?
What is the value of (f(x)=\lfloor 3x\rfloor) at (x=-0.4)?
#standard-functions
#greatest-integer-graph
#negative-value
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A (-2)
B (-1)
C (0)
D (-1.2)
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Explanation
Simple Explanation
(3x=-1.2) और \(\lfloor -1.2\rfloor=-2\)। ऋणात्मक दशमलव में नीचे की ओर पूर्णांक लें। / Here (3x=-1.2), and \(\lfloor -1.2\rfloor=-2\). For negative decimals, take the lower integer.
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फलन (f(x)=\left\lfloor\frac{x+2}{3}\right\rfloor) में (x=7.4) पर मान क्या है?
What is the value of (f(x)=\left\lfloor\frac{x+2}{3}\right\rfloor) at (x=7.4)?
#standard-functions
#greatest-integer-graph
#numerical
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A (3)
B (2)
C (3.13)
D (4)
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Explanation
Simple Explanation
\(\frac{7.4+2}{3}=\frac{9.4}{3}\), जो (3) से बड़ा और (4) से छोटा है। इसलिए ग्रेटेस्ट इंटीजर (3) है। / \(\frac{7.4+2}{3}=\frac{9.4}{3}\), which is greater than (3) and less than (4). So the greatest integer is (3).
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फलन (f(x)=\lfloor x\rfloor) के आलेख में \(x\in[-3,-2\)) पर (y) का मान क्या है?
In the graph of (f(x)=\lfloor x\rfloor), what is the value of (y) for \(x\in[-3,-2\))?
#standard-functions
#greatest-integer-graph
#step-interval
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A (y=-3)
B (y=-2)
C (y=3)
D (y=0)
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Explanation
Simple Explanation
हर \(x\in[-3,-2\)) के लिए \(\lfloor x\rfloor=-3\)। इसलिए उस चरण पर (y=-3) है। / For every \(x\in[-3,-2\)), \(\lfloor x\rfloor=-3\). So on that step, (y=-3).
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भिन्नात्मक भाग फलन (f(x)={x}) में (x=-2.3) पर मान क्या है?
For the fractional part function (f(x)={x}), what is the value at (x=-2.3)?
#standard-functions
#fractional-part-graph
#negative-value
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A (0.7)
B (-0.3)
C (0.3)
D (-2)
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Explanation
Simple Explanation
\({x}=x-\lfloor x\rfloor\) और \(\lfloor -2.3\rfloor=-3\)। इसलिए ({-2.3}=0.7) है। / \({x}=x-\lfloor x\rfloor\), and \(\lfloor -2.3\rfloor=-3\). Therefore ({-2.3}=0.7).
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फलन (f(x)={2x}) में (x=1.35) पर मान क्या है?
What is the value of (f(x)={2x}) at (x=1.35)?
#standard-functions
#fractional-part-graph
#value
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A (0.7)
B (2.7)
C (0.35)
D (1.7)
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Explanation
Simple Explanation
(2x=2.7) और ({2.7}=0.7)। भिन्नात्मक भाग पूर्णांक भाग हटाकर मिलता है। / Here (2x=2.7), and ({2.7}=0.7). The fractional part is obtained by removing the integer part.
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रेखा (3x+2y=12) का (y)-अक्ष प्रतिच्छेद क्या है?
What is the (y)-intercept of the line (3x+2y=12)?
#standard-functions
#linear-graph
#y-intercept
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A (6)
B (4)
C (12)
D (3)
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Explanation
Simple Explanation
(y)-अक्ष पर (x=0), इसलिए (2y=12) और (y=6)। प्रतिच्छेद के लिए दूसरे निर्देशांक को शून्य रखें। / On the (y)-axis, (x=0), so (2y=12) and (y=6). For intercepts, set the other coordinate to zero.
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रेखा (5x-y=10) की ढाल क्या है?
What is the slope of the line (5x-y=10)?
#standard-functions
#linear-graph
#slope
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A (5)
B (-5)
C (10)
D (1)
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Explanation
Simple Explanation
(5x-y=10) को (y=5x-10) लिखें। इसलिए ढाल (5) है। / Write (5x-y=10) as (y=5x-10). So the slope is (5).
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रेखा (2x-3y=9) का (x)-अक्ष प्रतिच्छेद क्या है?
What is the (x)-intercept of the line (2x-3y=9)?
#standard-functions
#linear-graph
#x-intercept
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A \(x=\frac{9}{2}\)
B (x=3)
C (x=-3)
D \(x=\frac{2}{9}\)
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Correct Answer
A. \(x=\frac{9}{2}\)
Explanation
Simple Explanation
(x)-अक्ष पर (y=0), इसलिए (2x=9)। इससे \(x=\frac{9}{2}\) मिलता है। / On the (x)-axis, (y=0), so (2x=9). This gives \(x=\frac{9}{2}\).
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रेखा \(y=-\frac{3}{4}x+2\) के समांतर रेखा की ढाल क्या होगी?
What is the slope of a line parallel to \(y=-\frac{3}{4}x+2\)?
#standard-functions
#linear-graph
#parallel-slope
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A \(-\frac{3}{4}\)
B \(\frac{4}{3}\)
C \(\frac{3}{4}\)
D (-2)
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Correct Answer
A. \(-\frac{3}{4}\)
Explanation
Simple Explanation
समांतर रेखाओं की ढाल समान होती है। इसलिए ढाल \(-\frac{3}{4}\) ही रहेगी। / Parallel lines have equal slopes. Therefore the slope remains \(-\frac{3}{4}\).
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फलन (f(x)=x-3 +3) का (y)-अक्ष प्रतिच्छेद क्या है?
What is the (y)-intercept of (f(x)=x-3 +3)?
#standard-functions
#cubic-graph
#y-intercept
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A (3)
B (0)
C (1)
D (-3)
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Explanation
Simple Explanation
(y)-अक्ष प्रतिच्छेद के लिए (x=0) रखें। तब (f(0)=3) मिलता है। / For the (y)-intercept, put (x=0). Then (f(0)=3).
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फलन (f(x)=(x-2)3 +4) का केंद्रीय बिंदु कौन सा है?
What is the central point of (f(x)=(x-2)3 +4)?
#standard-functions
#cubic-graph
#translation
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A ((2,4))
B ((-2,4))
C ((2,-4))
D ((4,2))
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Correct Answer
A. ((2,4))
Explanation
Simple Explanation
\(y=x^3\) का केंद्रीय बिंदु ((0,0)) है। यह आलेख (2) दाईं और (4) ऊपर खिसकता है। / The central point of \(y=x^3\) is ((0,0)). This graph shifts (2) right and (4) up.
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फलन (f(x)=x-3 +27) का (x)-अक्ष प्रतिच्छेद क्या है?
What is the (x)-intercept of (f(x)=x-3 +27)?
#standard-functions
#cubic-graph
#x-intercept
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A (x=-3)
B (x=3)
C (x=-27)
D (x=27)
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Explanation
Simple Explanation
(x)-अक्ष पर \(x^3+27=0\), इसलिए \(x^3=-27\)। इससे (x=-3) मिलता है। / On the (x)-axis, \(x^3+27=0\), so \(x^3=-27\). This gives (x=-3).
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फलन (f(x)=2x-3 ) का आलेख \(y=x^3\) की तुलना में कैसा है?
How is the graph of (f(x)=2x-3 ) compared with \(y=x^3\)?
#standard-functions
#cubic-graph
#stretch
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A ऊर्ध्व रूप से खिंचा हुआ / Vertically stretched
B ऊर्ध्व रूप से दबा हुआ / Vertically compressed
C दाईं ओर खिसका हुआ / Shifted right
D नीचे प्रतिबिंबित / Reflected downward
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Correct Answer
A. ऊर्ध्व रूप से खिंचा हुआ / Vertically stretched
Explanation
Simple Explanation
गुणांक (2) हर (y)-मान को (2) गुना करता है। इसलिए आलेख ऊर्ध्व रूप से खिंचता है। / The coefficient (2) multiplies every (y)-value by (2). So the graph is vertically stretched.
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कौन सा समीकरण ऊर्ध्व रेखा परीक्षण में असफल होता है?
Which equation fails the vertical line test?
#standard-functions
#vertical-line-test
#function-graph
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A \(y^2=x+1\)
B \(y=x^2+1\)
C (y=|x-1|)
D \(y=\sqrt{x+1}\)
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Correct Answer
A. \(y^2=x+1\)
Explanation
Simple Explanation
\(y^2=x+1\) में कई (x)-मानों के लिए दो (y)-मान मिलते हैं। इसलिए यह फलन का आलेख नहीं है। / In \(y^2=x+1\), many (x)-values give two (y)-values. So it is not the graph of a function.
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कौन सा फलन \(y=x^2\) को (3) इकाई दाईं ओर और (2) इकाई नीचे खिसकाता है?
Which function shifts \(y=x^2\) (3) units right and (2) units down?
#standard-functions
#graph-transformation
#quadratic
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A (y=(x-3)2 -2)
B (y=(x+3)2 -2)
C (y=(x-2)2 -3)
D (y=(x+3)2 +2)
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Correct Answer
A. (y=(x-3)2 -2)
Explanation
Simple Explanation
दाईं ओर (3) इकाई के लिए (x-3) और नीचे (2) इकाई के लिए बाहर (-2) होता है। इसलिए सही रूप (y=(x-3)2 -2) है। / For (3) units right, use (x-3), and for (2) units down, use outside (-2). So the correct form is (y=(x-3)2 -2).
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कौन सा फलन \(y=\sqrt{x}\) को (4) इकाई बाईं ओर और (5) इकाई ऊपर खिसकाता है?
Which function shifts \(y=\sqrt{x}\) (4) units left and (5) units up?
#standard-functions
#graph-transformation
#square-root
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A \(y=\sqrt{x+4}+5\)
B \(y=\sqrt{x-4}+5\)
C \(y=\sqrt{x+5}+4\)
D \(y=\sqrt{x-4}-5\)
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Correct Answer
A. \(y=\sqrt{x+4}+5\)
Explanation
Simple Explanation
बाईं ओर (4) इकाई के लिए अंदर (x+4) और ऊपर (5) इकाई के लिए बाहर (+5) होता है। / For (4) units left, use inside (x+4), and for (5) units up, use outside (+5).
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फलन (f(x)=\frac{1}{x}) का \(y=\frac{1}{x+3}-4\) बनने पर कौन सा परिवर्तन हुआ?
What transformation changes (f(x)=\frac{1}{x}) into \(y=\frac{1}{x+3}-4\)?
#standard-functions
#graph-transformation
#reciprocal
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A (3) इकाई बाईं ओर और (4) इकाई नीचे / (3) units left and (4) units down
B (3) इकाई दाईं ओर और (4) इकाई ऊपर / (3) units right and (4) units up
C (4) इकाई बाईं ओर और (3) इकाई नीचे / (4) units left and (3) units down
D (3) इकाई ऊपर और (4) इकाई दाईं ओर / (3) units up and (4) units right
Explanation opens after your attempt
Correct Answer
A. (3) इकाई बाईं ओर और (4) इकाई नीचे / (3) units left and (4) units down
Explanation
Simple Explanation
अंदर (x+3) होने से (3) इकाई बाईं ओर और बाहर (-4) होने से (4) इकाई नीचे खिसकाव होता है। / The inside term (x+3) shifts the graph (3) units left, and outside (-4) shifts it (4) units down.
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फलन (f(x)=-(x-4)3 +2) का केंद्रीय बिंदु कौन सा है?
What is the central point of (f(x)=-(x-4)3 +2)?
#standard-functions
#cubic-graph
#reflection-translation
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A ((4,2))
B ((-4,2))
C ((4,-2))
D ((2,4))
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Correct Answer
A. ((4,2))
Explanation
Simple Explanation
\(y=x^3\) का केंद्रीय बिंदु ((0,0)) होता है और यह (4) दाईं ओर तथा (2) ऊपर खिसकता है। ऋण चिह्न दिशा बदलता है लेकिन केंद्रीय बिंदु ((4,2)) ही रहता है। / The central point of \(y=x^3\) is ((0,0)) and it shifts (4) right and (2) up. The negative sign changes direction but the central point remains ((4,2)).
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फलन (f(x)=\frac{4}{(x-3)2 }+1) का क्षैतिज आसिम्प्टोट कौन सा है?
What is the horizontal asymptote of (f(x)=\frac{4}{(x-3)2 }+1)?
#standard-functions
#reciprocal-square-graph
#horizontal-asymptote
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A (y=1)
B (x=3)
C (y=4)
D (x=1)
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Explanation
Simple Explanation
बड़े (|x|) पर (\frac{4}{(x-3)2 }) (0) के पास जाता है। इसलिए क्षैतिज आसिम्प्टोट (y=1) है। / For large (|x|), (\frac{4}{(x-3)2 }) approaches (0). So the horizontal asymptote is (y=1).
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फलन (f(x)=\left\lfloor x+1\right\rfloor) के आलेख में \(x\in[2,3\)) पर (y) का मान क्या है?
In the graph of (f(x)=\left\lfloor x+1\right\rfloor), what is the value of (y) for \(x\in[2,3\))?
#standard-functions
#greatest-integer-graph
#shifted-interval
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A (3)
B (2)
C (4)
D (1)
Explanation opens after your attempt
Explanation
Simple Explanation
यदि \(x\in[2,3\)), तो \(x+1\in[3,4\))। इसलिए \(\left\lfloor x+1\right\rfloor=3\) है। / If \(x\in[2,3\)), then \(x+1\in[3,4\)). Hence \(\left\lfloor x+1\right\rfloor=3\).
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फलन (f(x)={x-2}) में (x=5.75) पर मान क्या है?
What is the value of (f(x)={x-2}) at (x=5.75)?
#standard-functions
#fractional-part-graph
#shifted-value
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A (0.75)
B (3.75)
C (0.25)
D (5.75)
Explanation opens after your attempt
Explanation
Simple Explanation
(x-2=3.75) और ({3.75}=0.75)। भिन्नात्मक भाग पाने के लिए पूर्णांक भाग हटाएं। / Here (x-2=3.75) and ({3.75}=0.75). Remove the integer part to get the fractional part.
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फलन (f(x)=|2x-8|+3) का शीर्ष कौन सा है?
What is the vertex of (f(x)=|2x-8|+3)?
#standard-functions
#modulus-graph
#vertex-linear-inside
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A ((4,3))
B ((-4,3))
C ((8,3))
D ((4,-3))
Explanation opens after your attempt
Correct Answer
A. ((4,3))
Explanation
Simple Explanation
शीर्ष के लिए (2x-8=0) रखें जिससे (x=4) मिलता है। बाहर (+3) होने से शीर्ष ((4,3)) है। / For the vertex, set (2x-8=0), which gives (x=4). The outside (+3) makes the vertex ((4,3)).
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फलन (f(x)=\sqrt{16-x-2 }) का वास्तविक डोमेन क्या है?
What is the real domain of (f(x)=\sqrt{16-x-2 })?
#standard-functions
#square-root-graph
#domain-quadratic
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A ([-4,4])
B (\(-\infty,4]\)
C \([4,\infty\))
D \(\mathbb{R}\)
Explanation opens after your attempt
Correct Answer
A. ([-4,4])
Explanation
Simple Explanation
वास्तविक वर्गमूल के लिए \(16-x^2\ge 0\) चाहिए। इससे \(x^2\le 16\) और डोमेन ([-4,4]) मिलता है। / For a real square root, \(16-x^2\ge 0\) is required. This gives \(x^2\le 16\) and the domain ([-4,4]).
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