Posted by max on Sunday, June 8, 2014 at 7:50pm.
Find the number of units that produces a maximum revenue. The revenue R is measured in dollars and x is the number of units produced.
R = 80x – 0.0001x^2

Math  Steve, Monday, June 9, 2014 at 12:08am
as with all parabolas, the vertex (in this case a maximum) is at
x = b/2a = 80/0.0002