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2-72.

Find the equation of an exponential function that passes through each pair of points.

  1. and

    Use the equation to help you here. Begin by substituting one of the points for and .

    Next, substitute the other ordered pair for and .

    Use substitution, and solve for .

    Now, solve for .

  1. and

    Look at the hints in part (a).

Use the eTool below to help you solve part (a).
Click the link at right for the full version of the eTool: CCA2 2-72a HW eTool

Use the eTool below to help you solve part (b).
Click the link at right for the full version of the eTool: CCA2 2-72b HW eTool