Question

Shelly's plumber charges her $50 per hour plus a service call fee of $75. If she is going to create a function to represent this situation, what would be her input (independent variable)?

a.Total cost


b.Joe the plumber


c.50


d.75


e.Time, in hours

Answer 1

E. Time, in hours

Explanation:

given data

charges her $50 per hour]

plus a service call fee of $75.

we know that the total cost can be expressed as

y=75+50x------this is the function to represent the situation

where x is the number of hours worked

Hence the input independent variable is x, which is the time she can dedicate for the work