Frank is a plumber who charges a $35 service charge and $15 per hour for his plumbing services. Find

Discussion in 'Calculator Requests' started by math_celebrity, May 9, 2017.

  1. math_celebrity

    math_celebrity Administrator Staff Member

    Frank is a plumber who charges a $35 service charge and $15 per hour for his plumbing services. Find a linear function that expresses the total cost C for plumbing services for h hours.

    Cost functions include a flat rate and a variable rate. The flat rate is $35 and the variable rate per hour is 15. The cost function C(h) where h is the number of hours Frank works is:
    C(h) = 15h + 35


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