If y varies directly as x, what is the value of y in these ordered pairs (4,16) and (2,y)

y -5 = (-1/4)(x + 8)

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).