# Reflecting on Slope

- Author:
- I-Heng McComb

## Reflecting the Line

Reflect Line

*AB*across the line*y*= 8. Also reflect the slope triangle across*y*= 8.## Question 4

How do the slope triangle shown for Line *AB* and its image (a slope triangle for Line *A'B')* compare?

## Question 5

Are the slopes of Line *AB* and Line *A'B'* equal? Explain why or why not.

## Question 6

Move your line of reflection up or down and also try vertical lines of reflection. What is the effect on slope when you reflect a line across a horizontal or vertical line of reflection?

## Further Exploration:

1. Explore what happens when you reflect Line

*AB*across the line*y*=*x*. 2. You can also change the pre-image line by moving Points*A*and*B.*Do the relationships you noticed before still hold?