Question 7.

Which graph represents a function?

Left side bottom one

A function is a plot for an equation in 2 variables

Graph - C represents a function

24+x=y

step-by-step explanation:

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).