Chapter 12, Problem 135CUR

To determine

To find the coordinates of the vertices of the image and to draw the reflection in the y-axis.

Answer to Problem 135CUR

The new coordinates are (2,1), (3,2), (1,3).

Explanation of Solution

Given information: Three coordinates A(-1,2), B(-2,3), C(-3,1).

Graph:

  

Interpretation: The image on the left side of the coordinate plane is the real image and the image on the right side is the reflection of the real image.

Firstdraw $△ABC$ , then to make its reflection in the y-axis, multiply the new y-coordinate of each vertex by -1.