$\"\"$

Observe the graph:

Consider the scale on the $\"\"$ and $\"\"$ -axis is $\"\"$ .

Vertices of rectangle $\"\"$ are $\"\"$ and $\"\"$ .

Find rotation at $\"\"$ about the origin.

Write the vertex matrix for rectangle $\"\"$ is $\"\"$ .

Write the ordered pair as a vertex matrix.

Then multiply the vertex matrix by the rotation matrix.

$\"\"$ .

Find reflection about $\"\"$ -axis.

Then multiply the vertex matrix by the rotation matrix.

$\"\"$ .

Write the vertices of the image.

The first row represents the $\"\"$ -coordinates and the second row represents the $\"\"$ -coordinates.

The vertices are $\"\"$ and $\"\"$ .

$\"\"$

The image vertices are $\"\"$ and $\"\"$ .