ALGEBRA 2, 2012

 PAGE: 214 SET: Exercises PROBLEM: 8

Vertices of are  and .

Find rotation at  about the origin.

Write the vertex matrix for   is .

Write the ordered pair as a vertex matrix.

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 .

Graph:

Plot the points and and connect the points to form .

Plot the points and and connect the points to form .

Observe the graph:

and are similar, both has same shape and rotate about the origin.

Rotation vertices of the images are and .

Graph of the and is

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