Practice focused topic-wise MCQs with answers and explanations for quick revision and exam preparation.
Difficulty select karke sirf is topic ke focused MCQs practice karein. Score, timer aur explanations student-friendly flow me milenge.
Showing 471-480 of 600 questions.
In the line \(y=\frac{5}{4}x-9\), how much should (x) increase to increase (y) by (25)?
C. (20)
परिवर्तन \(\frac{5}{4}\Delta x=25\) होगा। इससे \(\Delta x=20\) मिलता है। / The change is \(\frac{5}{4}\Delta x=25\). This gives \(\Delta x=20\).
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If (p=-7) and (q=6) in (y=px+q), which statement is correct?
B. रेखा घटती है और (y)-अवरोध धनात्मक हैThe line decreases and the (y)-intercept is positive
(p=-7) ऋणात्मक ढाल देता है और (q=6) धनात्मक (y)-अवरोध देता है। इसलिए रेखा घटती है। / (p=-7) gives a negative slope and (q=6) gives a positive (y)-intercept. So the line decreases.
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If (4x+ay=36) has (y)-intercept (9), what is (a)?
C. (4)
(x=0) रखने पर (ay=36) और \(y=\frac{36}{a}\) मिलता है। \(\frac{36}{a}=9\) से (a=4) है। / Putting (x=0) gives (ay=36) and \(y=\frac{36}{a}\). From \(\frac{36}{a}=9\), (a=4).
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If (bx+9y=54) has slope (-2), what is (b)?
C. (18)
(9y=-bx+54) से ढाल \(-\frac{b}{9}\) है। \(-\frac{b}{9}=-2\) से (b=18) है। / From (9y=-bx+54), the slope is \(-\frac{b}{9}\). From \(-\frac{b}{9}=-2\), (b=18).
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The line (y=(n-6)x+(3n-2)) has (y)-intercept (19). What is its slope?
A. (1)
(3n-2=19) से (n=7) मिलता है। ढाल (n-6=1) है। / From (3n-2=19), (n=7). The slope is (n-6=1).
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The line (y=(t-9)x+(2t+1)) has slope (3). What is its (y)-intercept?
C. (25)
(t-9=3) से (t=12) मिलता है। (y)-अवरोध (2t+1=25) है। / From (t-9=3), (t=12). The (y)-intercept is (2t+1=25).
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Which line cuts the (y)-axis at ( (0,-11) ) and increases (y) by (40) when (x) increases by (5)?
A. (y=8x-11)
ढाल \(\frac{40}{5}=8\) है और (y)-अवरोध (-11) है। इसलिए रेखा (y=8x-11) है। / The slope is \(\frac{40}{5}=8\) and the (y)-intercept is (-11). So the line is (y=8x-11).
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Which line cuts the (y)-axis at ( (0,16) ) and decreases (y) by (42) when (x) increases by (6)?
B. (y=-7x+16)
ढाल \(-\frac{42}{6}=-7\) है और (y)-अवरोध (16) है। इसलिए (y=-7x+16) सही है। / The slope is \(-\frac{42}{6}=-7\) and the (y)-intercept is (16). So (y=-7x+16) is correct.
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If (y=(a+7)x+(a-12)) passes through the origin, what will be its slope?
C. (19)
मूल बिंदु से गुजरने के लिए (a-12=0) होगा। इसलिए (a=12) और ढाल (a+7=19) है। / To pass through the origin, (a-12=0). Thus (a=12) and the slope is (a+7=19).
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If (y=(2u-3)x+(u+5)) has (y)-intercept (14), what is the slope?
B. (15)
(u+5=14) से (u=9) मिलता है। ढाल (2u-3=15) है। / From (u+5=14), (u=9). The slope is (2u-3=15).
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