Question

Hiro and Lisa are photographers. They take pictures of seniors for high school yearbooks. They charge a standard fee for taking pictures. There's also a charge for each set of prints ordered. So the number of sets of prints determines the total cost .
Set of prints Total cost
0 $15
1 $18
2 $21
3 $24
Let s stand for the sets of prints ordered. Write the rule that describes a students total cost.

Answer 1

ok so how much is the standard fee? @ikickboxes

Answer 2

It doesn't say @billj5

Answer 3

it does, its the amount they initially charge, regardless of how many prints

Answer 4

so $15?

Answer 5

yep

Answer 6

so no matter what they are charging 15, so that is a constant value

so we have

cost = 15 + ?

Answer 7

now looking at the pattern how much do they charge for each set of prints?

Answer 8

$3?

Answer 9

perfect

Answer 10

so what is the entire formula now?

cost = 15 + ?*s

Answer 11

so cost = 15 + 3s ?

Answer 12

perfect :) you could write it either way

15 + 3s

or

3s + 15

Answer 13

eeee!! yaaay thank you!! ^_^

Answer 14

yw :)