# Lesson 13ETransformations with MatricesSolidify Understanding

Find the degree measure of the angle labeled with an .

## Set

### 5.

Create a matrix with values from these coordinates: , , , . The -values will be in the top row, and the -values will be in the bottom row.

### 6.

Multiply the transformation matrix times the matrix .

### 7.

Plot the original parallelogram with coordinates , , , . Then, use the points from the matrix created in problem 6 and plot them on the following coordinate grid. Connect those four points to make a quadrilateral. What transformation occurred between the original parallelogram and the new one?

## Go

### 8.

Function is defined by the given table.

1. Write an equation for .

2. Fill in the values for assuming that .

3. Write an equation for .

4. Fill in the values for assuming that .

5. Write an equation for .