Sigma Math 7: Advanced Work: Reflections III
- Author:
- mrmorgan
- Topic:
- Reflection
The Goal
The goal is to do two separate reflections (or three if you like)
a) reflect the triangle across the line y = x
b) reflect the triangle across the line y = -3
c) (optional): reflect the triangle across the line x = 2
Try it yourself:
Think about and try to do these reflections, then check them. For hints and help, check the Procedure section below.
Procedure:
1) Identify and list the coordinates of triangle ABC.
2) create a table of ordered pairs for each expression
3) graph the line for each expression
4) try to do the reflection both using point mapping notation or by drawing.
Review:
Point Mapping Notation is: A(x,y) --> A'(____,____)