Question

Qd=650-5p-p2 where p=10.. dtermine price elasticity of demand

Answer 1

650 - 5p - p2
p=2 so,

650-5(10) - (10)^2

650 - 50 - 100

650 - 150

500

i think thiz is the answer

Answer 2

Price elasticity of demand = Change in quantity / Change in price.

The demand equation is as follows.

Q = 650 - 5p - p²

To get the equation for price elasticity of demand we differentiate the demand equation.

dQ/dp = -5 - 2p

Now p = 10

Doing the substitution we have :

-5 -(2 × 10) = -25

Answer : -25