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Math

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Manny is a plumber and charges $50 when he visits a client and $30 per hour for every hour he works. His bill can be expressed as a function of hours, x, with the function
f(x)= 50 +30x. Which statement explains the meaning of the inverse of the function?

A)Total bill as a function of the number of hours
B)Cost per hour as a function of the total bill
C)Number of hours as a function of the total bill
D)Total bill as a function of the cost per hour

  • Math - ,

    The inverse function would be choice (C), since the two variables are total cost and number of hours.

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