High School Math : How to graph an ordered pair

Study concepts, example questions & explanations for High School Math

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Example Questions

Example Question #1 : How To Graph An Ordered Pair

The vertices of a triangle are given by .  The triangle is rotated about the origin by degrees clockwise.  What are the new coordinates?

Possible Answers:

Correct answer:


The coordinates form a triangle in the second quadrant with a side along the y-axis.  The rotation about the origin by degrees clockwise results in a triangle in the first quadrant with a side along the x-axis.  There are two responses that give triangles along the x-axis: 


A rotation and a dialation by a factor of is given by

, so the correct answer is

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