a) Find the minimum break even quantity
R(x)=-4/5x^2+10x, C(x)=2x+15
*Is the answer= 5/2 and 15/2?
b) Use the above equation, find the profit from 100 units.
Hard to do when you don't define your variables ...
but
break even means "they are equal"
-4/5 x^2 + 10x = 2x + 15
The solution to that is indeed 5/2 and 15/2 , but we don't know what x is
Assuming Profit = Revenue - Cost
= -4/5x^2+10x - (2x+15) , sub in x = 100
= -4/5 (10000) + 1000 - 200 - 15
= -7215 ??????
define what x is !