Posted by Mike on Thursday, June 13, 2013 at 8:14pm.
The demand function for the Luminar desk lamp is given by the following function where x is the quantity demanded in thousands and p is the unit price in dollars.
p = f(x) = 0.1x2  0.3x + 39
(a) Find f '(x).
f '(x) =
(b) What is the rate of change of the unit price when the quantity demanded is 3000 units (x = 3)?
$ per 1000 lamps
What is the unit price at that level of demand?
$

Calculus  Anonymous, Monday, October 17, 2016 at 8:57pm
654