- How many squares are determined by the grid lines to the right if the 48 smaller quadrilaterals are
congruent squares?

this may not be at all, but i use the same website you're using for school, and if i'm stuck doing one of these i try to look for it on the section.

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).