Answer:
(8, 0)
Explanation:
Whenever a point (x,y) is reflected across the line y=x, the transformation rule is given below:
![(x,y)\to(y,x)](https://img.qammunity.org/2023/formulas/mathematics/college/rcca2uk6tk7rtejcsty8f8rv4vqc42uh0r.png)
That is, the x-coordinate and y-coordinate change places.
Therefore, the image of the point (0,8) when reflected across the line y=x is:
![(8,0)](https://img.qammunity.org/2023/formulas/mathematics/college/gm0162upl3zkrh0owwhiv98gpec0ag0bgo.png)
The correct answer is (8,0).