Question

Jennifer purchased a cell phone and the plan she decided upon charged her $55for the phoneand 0.20 for each minute she is on the phone. (The wireless carrier rounds up to the half minute.)has budgeted $150 for her phone bill as she has to her cost as a function of the car insurance as well.SheWhat would be the appropriate domain for thetotal minutes sheused the phone?Describewhat the point (20,59)

Answer 1

t ≤ 475

The coordinate shows that the total money spent if the uses 20 minutes is $59

Explanations

Let the total number of minutes she used on the phone be "t"

If Jennifer purchased a cell phone and the plan she decided upon charged her $55 for the phone and 0.20 for each minute she is on the phone, then her total charge in "t" minutes will be:

T = 55 + 0.20t

If she has budgeted $150 for her phone bill, then the total cost will be given as:

150 = 55 + 0.20t

To calculate the domain we will calculate the value of t

150 - 55 = 0.20t

0.20t = 95

t = 95/0.20

t = 475

The domain of the function is t ≤ 475

b) To describe the coordinate point (20, 59). The coordinate shows that the total money spent if the uses 20 minutes is $59