Perform reflections

The  exercise appears under the 8th grade (U.S.) Math Mission and Geometry Math Mission. This exercise practices reflection on the coordinate plane.

Types of Problems
There is one type of problem in this exercise:


 * 1) Use the reflect tool to reflect: This problem provides a coordinate grid and a reflection problem. The student is expected to find the line that can be used to reflect one preimage into the other image.Perref1.png

Strategies
Knowledge of the coordinate plane and geometric transformations, particularly reflections, are encouraged to ensure success on this exercise.
 * 1) Reflections are defined by the line that they are being flipped over.
 * 2) The manipulative defines the reflection line by specifying two points that are on the line.

Real-life Applications

 * 1) Reflections can be seen as the foundational geometric transformations, since rotations and translations can be defined in terms of two rotations.
 * 2) Reflections are linear transformations as long as the line goes through the origin (zero vector).
 * 3) Mirrors are real-life examples of reflection machines.