Question

A company's monthly profit, P, from a product is given by P = −x2 + 105x − 1050, where x is the price of the product in dollars. What is the lowest price of the product, in dollars, that gives a monthly profit of $1,550?

Answer 1

@iGreen

Answer 2

1550 = -x^2 + 105x -1050
x^2 -105x + 2600 = 0
factorize the quadratic to find x
to use the quadratic formula a = 1 b = -105 c= 2600
x = 40, x = 65
which is lower?

Answer 3

40 @triciaal

Answer 4

thanks!!!

Answer 5

welcome