Question

Raj is deciding between two cell phone plans, A and B, which are both linear functions. The monthly charge for plan A according to the number of minutes used is shown in the table.

Monthly Charge for Plan A
Minutes used, x. Monthly charge ($), y
0 14.45
3 14.84
6 15.23
9 15.62
12. 16.01

Plan B has the same monthly base charge as plan A, but it charges a different amount per minute used. If the total monthly charge for plan B is $22.10 when 45 minutes are used, what is the slope of the linear function that represents the cost of plan B?

0.13
0.17
0.39
0.45

Answer 1

Answer

B

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