Step-by-step explanation: Substitute the numbers in for x to find the y - intercept
A) 1:
3y = 6x + 12
3y = 6(1) + 12
3y = 6 + 12
3y = 18
3 3
y = 6
B) 2:
3y = 6x + 12
3y = 6(2) + 12
3y = 12 + 12
3y = 24
3 3
y = 8
C) 3:
3y = 6x + 12
3y = 6(3) + 12
3y = 18 + 12
3y = 30
3 3
y = 10
D) 4:
3y = 6x + 12
3y = 6(4) + 12
3y - 24 + 12
3y = 36
3 3
y = 12
Hope this helps you!!! :)