Answer:
a=-3, b=0, c=6, d= 9
Step-by-step explanation:
simply subsitute the corresponding x in the equation y=3x+3 for each letter.
for a, do y=3(-2)+3➡ y=-6+3➡y=-3
for b, do y=3(-1)+3➡y=-3+3➡y=0
for c, do y=3(1)+3➡y=3+3➡y=6
for d do, y=3(2)+3➡y=6+3➡y=9
