Question

The point of the form (a, - a) always lies on the line

• A. x = 1
• B. y = - a
• C. y = x
• D. x + y = 0

Answer 1

The correct option is D x + y = 0

x + y = a + (- a) = 0 [since, given point is of the form (a, -a)]
Hence, the point (a, - a) always lies on the line x + y = 0.