Graph the circle which is centered at (-5, 4) and which has the point (1, -1) on it.

i think it would be 42cm

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).