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Math Help - How do I approach this

  1. #1
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    Exclamation How do I approach this- SOLVED

    This comes out of a calculus book chapter one identifying functions and mathematical models:
    The question is access whether the given data sets reasonably support the stated proportionality assumption. Graph an appropriate scatterplot for your investigation and, if the proportionality assumption seems reasonable, estimate the constant of proportionality
    a.) y is proportional to 3^x
    in a chart
    Y:5,15,45,135,405,1215,3645,10935
    X:0,1,2,3,4,5,6,7
    Last edited by nightrider456; September 18th 2010 at 08:49 PM.
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  2. #2
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    Do you undestand what "y is proportional to 3^x" means? Do you understand what "A is proportional to B" means in general?
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  3. #3
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    Given the above definition, the biggest hint you'll get is to look at the very first ordered pair in the sequence.
    Last edited by Dfrtbx; September 17th 2010 at 07:22 AM. Reason: typo
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  4. #4
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    Good point!
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