Question

which of the best describes the profit Emily makes from selling these cards?

Answer 1

ANSWER:

$7.5 per box

STEP-BY-STEP EXPLANATION:

We must calculate the slope of the line to know the price of each card:

$m=\frac{y_2-y_1}{x_2-x_1}$

Replacing the points (0, 0) and (4, 30):

$m=\frac{30-0}{4-0}=\frac{30}{4}=7.5$

Which means that the cost per box is $7.5