what is the pre-image of vertex a' if the image shown on the
graph was created by a reflection across the line y = x?
(10,-2)
(-10, 2)
(-2,-10)
(2, 10)

astronomers is your final answer! : )

7

step-by-step explanation:

the answer would be 7

asdasdsad

step-by-step explanation:

look at the picture.

y-intercept for the function on a picture is 4 → point (0, 4).

y-intercept for the function

is for x = 0. substitute:

y-intercept is 8 → point (0, 8).