फलन (f(x)=|x|-x) का ग्राफ (x<0) पर किस रेखा जैसा है?
For (x<0), the graph of (f(x)=|x|-x) is like which line?
Explanation opens after your attempt
C. (y=-2x)
Concept
For (x<0), (|x|=-x), so (f(x)=-x-x=-2x). In exams, open modulus according to the sign.
Why this answer is correct
The correct answer is C. (y=-2x). For (x<0), (|x|=-x), so (f(x)=-x-x=-2x). In exams, open modulus according to the sign.
Exam Tip
(x<0) पर (|x|=-x) इसलिए (f(x)=-x-x=-2x)। परीक्षा में मापांक को चिह्न के अनुसार खोलें।
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