Question

key has vertices located at k(-1,8) E(4,-3) and Y (-2,-5) this triangle will be rotated 180 around the point (3,-2) What is the y coordinate of k

Answer 1

Lets draw a picture of the triangle:

Then, if we rotate the triangle 180 degrees around point (3,-2), we get

`y=8\Rightarrow y=-8`

that is, the coordinate y becomes -8. Then, the coordinate y of k will be -8