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# Profit Functions: Carwash

SATMAT-XK1KDV

A carwash finds that it loses customers as it increases the price for washing a car. In particular, the function $c(p)=-4p+100$ models the number of customers $c$ who come in each day as a function of the price, $p$, for washing a car.

If the carwash has a flat daily operating expense of ${\$500}$, which function models the carwash's daily profit,$ D $, as a function of$ p $? A$ D(p)=-4p-400 $B$ D(p)={ -4p }^{ 2 }+100p-500 $C$ D(p)={ -4p }^{ 2 }+100p $D$ D(p)={ -4p }^{ 2 }-500 \$