Answer:
C. P'(-4,-7), Q'(-8,-7), R'(-3,3).
Step-by-step explanation:
When a shape is reflected over a line y=x, the values in the coordinates are just swapped.
P(-7,-4) becomes P'(-4,-7)
Q(-7,-8) becomes Q'(-8,-7)
R(3,-3) becomes R'(-3,3)
The answer is P'(-4,-7), Q'(-8,-7), R'(-3,3).
