Answer:
Y=3
Step-by-step explanation:
You go over to the X axis, find -2 and go up the line vertically until you touch the black line going across. You look to the right and see it says 3. So 3 is your answer
f(x) = 2x
f(x) = 2x + 4 (Is translated 4 units up.)
I don't get what you are trying to ask?
