Substitute x = 9.4, y = -1.7, and z = 4.8 into the expression 2y² - 4x + 8z.

y=3n + 1

step-by-step explanation:

this is wrong because it says the second number is one less and i added one instead

look at the picture.

y-intercept for the function on a picture is 4 → point (0, 4).

y-intercept for the function

is for x = 0. substitute:

y-intercept is 8 → point (0, 8).