Question

A municipal electrical utility charges customers a $15 per month fee plus 12 cents per kilowatt-hour of energy used. Write an equation for a customer's monthly costs, C (in dollars) for electric service as a function of x, the kilowatt-hours used.

Answer 1

C(x) = 15 + 12 * x

Explanation:

Cost = monthly fee plus cost per hour * hours

C(x) = 15 + 12 * x