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| 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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