Question

A point (x + 2, x + 4) lies in the first quadrant, the mirror image for which for x-axis is (5, –7). What is the value of x?

Answer 1

Step-by-step explanation:

P(x, y) => x - axis => P' (x, -y)

as x coordinate remains same under reflection about x axis,

x+2 = 5 => x = 5 - 2 => x = 3