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Math Help - Finding a model equation??

  1. #1
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    Finding a model equation??

    I was given this assignment and have no idea how to even start! Do I need to make a stat graph? Which columns of information do I use? Will the equation be in ax^2 +bx+c form? And how can I use it?

    Can someone find the equation? Is it: 2.1190x^2+6.6429x+11.1667?
    Thank you so much in advance!

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  2. #2
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    First try graphing "Total Revenue" as a function of "Advertising". That should give you an idea of what kind of function to try.
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  3. #3
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    Yeah, I did do that - I guess I just don't know if I should be using an ax+b function or the quadratic function?
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  4. #4
    MHF Contributor

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    Well, does the graph look like a straight line? In not, use the quadratic.
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