Question

What is the image of the point (8,5) after a rotation of 180 counterclockwise about the origin?

Answer 1

(-8,-5)

Explanation:

A counterclockwise rotation of 180 degrees about the origin changes the original coordinate for ex; (1,-2) to (-1,2)

So, with a counterclockwise rotation of 180 degrees (8,5) to (-8,5)

Answer 2

(-8,-5)

Explanation:

When you go from quadrant I, where both the X and Y values are positive and rotate 180 degrees you end up in quadrant III, where both X and Y values are negative! Hope this helps :)