Finding Reflections of Points

Finding Reflections of Points

Introduction

A reflection flips a figure across a line to create a mirror image. On a coordinate plane, figures can be reflected across the x-axis or the y-axis.

Reflections change a figure’s position but preserve its size and shape...

Irene gets a homework problem to reflect triangle PQR across the y-axis on the coordinate plane.

Let's first see the rules of reflection to help Irene solve the problem.

When a figure is reflected across the y-axis, each point moves the same distance to the opposite side of the y-axis. So, the sign of the x-coordinate changes, while...