Answer:
(a) Point R is at (−40, 40), a distance of 70 units from point Q
Step-by-step explanation:
Point Q is on the same horizontal line as P, but is 30 -(-40) = 70 units away. If point R is 70 units above point Q, its y-coordinate will be -30 +70 = 40.
Point R is at (−40, 40), a distance of 70 units from point Q