For Q1-5: Consider the function f (x) = ex. 1. Let y = f(x). Express x in terms of y. (a) x = In (y) (b) x = [In()] (c) x = - In (#) (d) x = -In (-y) (e) x = T 1 In (- y ) 2. Suppose x > 0. What is the range of the function f(x)? (a) y 0 (c) y> 1 (d) 0 0. Find the point elasticity of supply. (a) - (b) 1 (c) Q (d) Q2 21/Q (e) Q-2e-1/