Answer:
answer is f(0)=12
Step-by-step explanation:
f(x)=2x + 12
to find y-intercept, subsitute x=0
f(0) = 2 x 0 + 12
any expression multiplied by 0 equals 0
f(0) = 0=12
when adding or subtracting the quantity does not chnage
f(0)=12
