Question
Kool Klothes has determined that the revenue function for selling x thousand pairs of shorts is R(x) =-5x^2 + 21x. The cost function C(x) = 2x + 10 is the cost of producing the shorts.
How many pairs of shorts must the company sell in order to break even
How many pairs of shorts must the company sell in order to break even
Answers
Steve
you want cost = revenue
2x+10 = -5x^2+21x
5x^2 - 19x + 10 = 0
I think that R(x) is bogus, since it starts to decline as more shorts are sold.
http://www.wolframalpha.com/input/?i=2x%2B10+%3C+-5x%5E2%2B21x
2x+10 = -5x^2+21x
5x^2 - 19x + 10 = 0
I think that R(x) is bogus, since it starts to decline as more shorts are sold.
http://www.wolframalpha.com/input/?i=2x%2B10+%3C+-5x%5E2%2B21x