the answer is (4,3)
since the rule for r0, 90º is (-y,x) and it was already applied to form the image, all you have to do is reverse the answer using this formula.
step-by-step explanation:
we are given
since, we have to isolate x on anyone side
so, we can move all x terms on one side
subtract both sides by 2x
add both sides by 9
divide both sides by 4
we get