Question

The graph below shows the price, including tax, of backpacks that are on sale at an online store.1009080706050403020101Х02 4 6 8 10 12Number of BackpacksWhat is the cost per backpack?

Answer 1

Problem

Solution

For this case we can use two points:

(0,0) and (6,90)

and we can find the slope on this way:

$m=\frac{90-0}{6-0}=15$

And we can conclude that the correct answer for this case is:

C. $ 15.00