Question

Help with this find the image of (1 ,2) after a reflection about y=x followed by a reflection about y=-x

Answer 1

Answer: (-1, -2)

Explanation:

so at first you have (1, 2)

then you were asked to reflect about y=x which is (x, y) = (y, -x)

(1, 2) = (2, -1)

then followed by y=-x which is (x, y) = (-y, -x)

(2, -1) = (-1, -2)

I hope this helps!