Question

What is the reflection of point P(-1, 6) across the line y = x?

A) P(-6, 1)
B) P(-6, -1)
C) P(6, -1)
D) P(6, 1)

Answer 1

C

Explanation:

Under a reflection in the line y = x

a point (x, y ) → (y, x ) , thus

P(- 1, 6 ) → P'(6, - 1 ) → C