Class 11 Mathematics - Straight Lines - Slope of a line and angle between two lines Easy Quiz

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रेखा \(y=-x\) की ढाल क्या है?

What is the slope of the line \(y=-x\)?

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Correct Answer

B. ऋणात्मक ढाल (-1)Negative slope (-1)

Explanation

Simple Explanation

रेखा के मानक रूप \(y=mx+c\) में \(x\) का गुणांक \(m\) ढाल दर्शाता है। यहाँ \(y=-x\) को \(y=(-1)x+0\) लिख सकते हैं, इसलिए ढाल \(-1\) है और यह ऋणात्मक है। अतः धनात्मक ढाल वाला विकल्प गलत है। परीक्षा-युक्ति: \(x\) का गुणांक सीधे पढ़कर ढाल ज्ञात करें। / In the standard form \(y=mx+c\), the coefficient \(m\) of \(x\) represents the slope. Here, \(y=-x\) can be written as \(y=(-1)x+0\), so the slope is \(-1\), which is negative. Therefore, the positive-slope option is incorrect. Exam tip: identify the coefficient of \(x\) directly to find the slope.

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