Question

Joe provides photos for two online sites: site A and site B.

Site A pays $0.75 for every photo Joe provides.

The amount in dollars (y) site B pays as a function of the number of photos provided (x) is represented by the equation y = 0.25x.

How much more was Joe paid at site A than at site B, if he provided five photos for each site?

$1.25
$1.50
$2.50
$3.50

Answer 1

We can make site A also into an equation. y=0.75x

Answer 2

So...
Site A: 0.75x
Site B: 0.25x

Answer 3

Now we just have to plug in 5 for x in the equations.
Site A: 0.75 x 5
Site B: 0.25 x 5

Answer 4

Site A: y = $3.75
Site B: y = $1.25

Answer 5

$3.75 -- $1.25 = $2.50
Answer Choice C
Hope this helps!