Question

Find three points that satisfy the following conditions.
The x-coordinate and the y-coordinate are additive inverses of each other.

Any help or clues would be very much appreciated.

Answer 1

an additive inverse of a number is simply its opposite

e.g. the additive inverse of 5 is -5

so an example of your case would be

(4,-4) , the x is the additive inverse of the y

You pick any other two.