Question

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

Answer 1

$7.5 per box

Explanation:

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

`m=(y_2-y_1)/(x_2-x_1)`

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

`m=(30-0)/(4-0)=(30)/(4)=7.5`

Which means that the cost per box is $7.5