Question

The graph shows the fees for Susan's Images. Which statement is true regarding the grapha Susan charges $20 per photo b Susan charges $5 per photo c Susan charges $30 per photo d Susan charges $1 per photo

Answer 1

The question can be translated to: what is the slope of the line?

To find it, we see that for 3 photos, Susan charges $60, then the slope ( or the cost per photo) is

$\frac{60}{3}=20$

Then, the correct answer is a. Susan charges $20 per photo.