$18 was the price of the t-shirt
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).
it's a proportional graph.
8 x 5 = 40 (and you have -8x and -5y)
x= absiss
y= orderly
so you have a proportional graph.
there are a some missing symbols and signs and it makes it difficult to comprehend the answer