3. The demand equation for a product is given by P =30 - 0.1Q²
a. Write an equation for the point elasticity as a function of quantity.
b. At what price is demand unitary elastic?
a. since P =30 - 0.1Q²
the differential of P is
dP/dQ = -0.2Q
The formula of point elasticity is
E = ...
Point Elasticity is featured.