CPM Homework Help : INT3 Problem 2-139

The amount of profit each day made by Math Starz, a company that sells math game apps, can be modeled by the equation $P(s)=-s^2+10s$ , where $s$ is the sales price of an app in dollars. Their competitor, Comet Math has a different model for sales price and profits given by the table below.

Sales price ( $$$ )	$2.00$	$4.00$	$6.00$	$8.00$	$10.00$	$13.00$	$15.00$
Daily profit ( $$$ )	$7.00$	$17.00$	$23.00$	$25.00$	$23.00$	$12.50$	$0.50$

What is the maximum profit the models predict for each company? Which company can sell their apps for less to make the maximum profit?

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