Question

The point Z (4, -2) is rotated 180 degrees about the origin. What is the image of Z?

Answer 1

Z(-4, 2)

EXPLANATION :

Note that rotating an image (x, y) 180 degrees about the origin will be :

`(x,y)\rightarrow(-x,-y)`

The signs of x and y coordinates will change.

From the problem, we have :

`Z(4,-2)\rightarrow Z(-4,2)`