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Math Help - Slope Word Problem

  1. #1
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    Slope Word Problem

    I have been working on a worksheet for my Algebra I class, and I have figured out all but a few problems relating to one question. Help is much appreciated.


    A construction company charges $15 per hour for debris removal, plus a one-time fee for use of a trash dumpster. The total fee for 9 hours of service is $195.

    Part a)
    Write the point-slope form of an equation to find the total fee y for any number of hours?

    part b)
    Write the equation in slope-intercept form.

    part c)
    What is the fee for the use of a trash dumpster?

    Thank-you for your time.
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  2. #2
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    Here's a kick start.

    Consider the slope-intercept form C = aN+b where C is total cost and N is the number of hours.

    'a' is the hourly rate i.e 15 now all we need to do is solve for 'b'.

    You are also told that (N,C) = (9,195) put this information back into the equation to solve for 'b'.
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