Posted by Alex on .
Dalco manufacturing estimate that its weakly profit, P, in hundreds of dollars,can be approximated by the formula P= 4x²+8x+7, where x is the number of units produced per week, in thousands.
1)How many units should the company produce per week to earn maximum profit
2)Find the maximum weekly profit.

Trig ??? 
Reiny,
d(P) = 8x + 8 = 0 for a max/min of P
8x = 8
x = 1
when x = 1
P = 4+ 8+7 = 11
I will leave it up to you to interpret the answer and state the conclusion