Graphing - High School Math
Card 0 of 1
Question
The vertices of a triangle are given by 
. The triangle is rotated about the origin by 
degrees clockwise. What are the new coordinates?
The vertices of a triangle are given by
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:
and
A rotation and a dialation by a factor of 
is given by
, so the correct answer is
The coordinates form a triangle in the second quadrant with a side along the y-axis. The rotation about the origin by
A rotation and a dialation by a factor of
Compare your answer with the correct one above
Tap the card to reveal the answer