Answer to Question #309222 in Macroeconomics for shamina

Question

the demand function for a product is D(q)=-2q²+60. use a difference with h=0.001 to estimate the marginal demand when 5 units are produced.

(A) $119.96 per unit

(B)$1 per unit

(C) -$0.04 per unit

(D) -$20 per unit

(E) -$40 per unit

Answer 1

$\text{Marginal Demand(MD)}=\dfrac{dD}{dQ}\\ \text{MD}=-4q\\ MD_5=-4*5=-20$

Answer: (D) -$20 per unit