Question

For what value or values of q does the damns equation p=1200-q^2 have unit elasticity?

Answer 1

The demand equation p = 1200 - q²

set E = 1

1200 - q² =2q²

3q² = 1200 and q = 20 items

so if quantity is 20 items then you will have maximum revenue.

Since you know the purpose of unit elasticity is at q = 20 you currently need to figure out where elasticity and inelasticity will happen. Return to you elasticity formula and supplement the values p = 19 and after that p = 21

as per data over, this interest is elastic on the interval (0,20) and inelastic on the interval (20,).