Chapter 13.5, Problem 11PSB

To determine

To find:The point on pre image.

Answer to Problem 11PSB

The point on pre image is (-3,7).

Explanation of Solution

Given:

The point is given as,

  $Q\text{'}=\left(3,7\right)$

Calculation:

The reflection is done on the y-axis, which means that the sign of the x-axis coordinates changes.

Thus, the new coordinate is,

  $Q=\left(-3,7\right)$

Thus, the point on pre image is (-3,7).