# Reflecting About Lines: Ex. 18

- Author:
- Tim Brzezinski

- Topic:
- Geometry

## DIRECTIONS:

1) Position Wily Coyote (using points

*and***A***) anywhere you'd like within the coordinate plane. 2) Select the REFLECT ABOUT LINE tool. Then drag a rectangle around points***B***,***A***, and Wily's picture. This should cause these 3 items to become highlighted. Select the dashed line. 3) The images of these items should now appear. Please answer the questions that appear below the applet.***B**## 1.

Note the equation of the original line is .
**What is the image of point ( a, b) under a reflection about the line **

**?**

## 2.

Move the 2 orange points around to change the equation of the line to .
**What is the image of point ( a, b) under a reflection about the line **

**?**