असमानता \(5x-2y\le 10\) को (y) के रूप में लिखने पर सही शेडिंग नियम कौन-सा है?
What is the correct shading rule when \(5x-2y\le 10\) is written in terms of (y)?
Explanation opens after your attempt
Correct Answer
C. \(y\ge \frac{5x-10}{2}\) के ऊपरabove \(y\ge \frac{5x-10}{2}\)
Concept
From \(-2y\le 10-5x\), reversing the sign gives \(y\ge \frac{5x-10}{2}\). The inequality sign changes when dividing by a negative.
Why this answer is correct
The correct answer is C. \(y\ge \frac{5x-10}{2}\) के ऊपर / above \(y\ge \frac{5x-10}{2}\). From \(-2y\le 10-5x\), reversing the sign gives \(y\ge \frac{5x-10}{2}\). The inequality sign changes when dividing by a negative.
Exam Tip
\(-2y\le 10-5x\) से चिन्ह पलटकर \(y\ge \frac{5x-10}{2}\) मिलता है। ऋणात्मक से भाग देने पर असमानता का चिन्ह बदलता है।
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