A large dealership had been selling new cars at $6000 over the factory price. Sales have been averaging 80 cars per mouth. Because of inflation, the $6000 markup is going to be increased. The marketing manager has determined that, for every $100 increase, there will be one less car(adsbygoogle = window.adsbygoogle || []).push({});

sold each month. What should the new markup be in order to maximize the revenue?

Let x rep the number of $100 increases

the equation for revenu is (#sold)(price)

so (80-x)(6000+100x)

then, when you expand it its -100x^2+2000x+480 000

next, solve using the quadratic formula

is everything right?

Thanks

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# Solve using the quadratic formula

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