Answer:
The y-value of P' is -10.
Explanation:
It was given that; triangle PQR has vertices P(–2, 6), Q(–8, 4), and R(1, –2).
The translation rule is

To find the image of P, which is P', we have to substitute the coordinates of P(-2,6) to obtain;


Hence the y-value of P' is -10.