may somebody help me please and thank you.

Answer:
C. Both (1,11) and (-1,-5)
Step-by-step explanation:
Plug in the x and y coordinates into the equation and see if the values hold true.
Test (1,11):
11=8(1)+3
11=8+3
11=11
TRUE
Test (-1,-5):
-5=8(-1)+3
-5=(-8)+3
-5=-5
TRUE