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Solutions of Linear Equation in 2 Variables on a Graph

Question 19Th...

Question

Question 19
The point of the term (a, -a) always lies on the line:

A) x = a
B) y = -a
C) y = x
D) x + y = 0

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Solution

The answer is D.
Taking option (d),
x + y = a + (-a) = a - a = 0 [Since, point (a, -a) satisfies the equation]
Hence, the point (a, -a) always lies on the line x + y = 0.

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Solutions of Linear Equation in 2 Variables on a Graph

Standard IX Mathematics

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