pleaer help, will brainly, i m struggling

Answer:
P' (-4, -1)
R' (-7, -1)
Q' (-4, 9)
Step-by-step explanation:
Reflecting over the line y = x can get tricky, but for example, if we take point P and we count diagnally until we hit the line, we get 1 and .5. If we count .5 then 1 diagnally over the line, we get the new points of P'.
Hope this Helps!