Peter the Plumber charges his customers a fee of $40 to look at the problem and then $60 per hour to fix the problem. What's the independent and dependent variable? What's the function rule?

Question

Instruction: Find the independent and dependent variable, then write a function rule using the problem.

Independent variable:

Dependent variable:

Function Rule:

Answer 1

Let x = number of hours (independent) and y = total cost (dependent)

y = f(x) = 60x + 40

Answer 2

Dependent=$60*hrs

In " =$40