Question

Jasmine is saving to buy a bicycle. The amount she has saved is shown in the table. What is the function describes the amount A, in dollars, Jasmine has saved after t weeks?

Table
Weeks/Amount
1 / $30
2 / $45
3 / $60
4 / $75
5 / $90
6 / $105

Answer 1

Your answer is A=15t+15

Answer 2

A = 15t +15

Explanation:

The amounts have a common difference of $15, so that is apparently the amount Jasmine is saving each week. Week 1, however, is $15 more than $15×1. The function ...

A = 15t +15 . . . . dollars

seems to fit the data.