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(Solved): Consider the demand function \[ q=D(x)=400 e^{-0.2 x} \text {. } \] a) Find the elasticity. \[ E(x) ...
Consider the demand function \[ q=D(x)=400 e^{-0.2 x} \text {. } \] a) Find the elasticity. \[ E(x)= \] b) Find the elasticity at \( x=3 \). Round to one decimal place. State whether the demand is elastic (type - E) or inelastic (type I) c) Find the elasticity at \( x=18 \). Round to one decimal place. State whether the demand is elastic (type E) or inelastic (type I). d) At a price of \( \$ 3 \), will a small increase in price cause the total revenue to increase (I) or decrease (D)? Type I or D.