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# Exponential and Logarithmic functions

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Sales and Advertising: The sales S (in thousands of units) of a product after x hundred dollars is spent on advertising is: S = 10(1-e^kx). When \$500 is spent on advertising, 2500 units are sold.

(a) Complete the model by solving for K.
(b) Estimate the number of units that will be sold if advertising expenditures are raised to \$700.

##### Solution Summary

Solves an exponential function.

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Sales and Advertising: The sales S (in thousands of units) of a product after x hundred dollars is spent on advertising is S=10(1-e^kx). When \$500 is spent on advertising, 2500 units are sold.

(a) Complete the model ...

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