Use the diagram to answer the question. fill in the blank for the letter given with the missing reason in the flow

I do not know what diagram that you are talking about, but it might be the one that I am thinking, so if this is the questions on your page, then let me know.

A - Vertex angles

B - 5 is congruent to 4

C - 5 and 4 are alternate interior angles, or Z angles

P and R are parrallel.

Hope I helped.

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.