In: Math
A price pp (in dollars) and demand xx for a product are related by
2x2+8xp+50p2=7400
If the price is increasing at a rate of 2 dollars per month when
the price is 10 dollars, find the rate of change of the demand.
Rate of change of demand =
---------(1)
Price p=10
Differentiating equation with respect to x
(x=20 ; p=10 dollars; dp/dt= 2 dollars/month)
Rate of change of the demand -14.5