Calculus true or false. Please tell me if I got this right. 1.T 2.T 3.F 4.T True

Question

Calculus true or false. Please tell me if I got this right.

1.T

2.T

3.F

4.T

True or false. Suppose R(100) = 5 and C?(100) 4.8. where R?(x) is marginal revenue and C?(x) is marginal cost, for a quantity x to be produced and sold. To increase total, production should be increased. A) True B) False True or false. Let E(p) be the price elasticity of demand. If E(p) = 4/5, price should be decreased to increase revenue. A True B) False True or false. An increase in price always causes an increase in profits. A) True B) False True or false. If average cost is below marginal cost, then increasing production will increase average cost. A) True B) False

Explanation / Answer

1.T    P(x) = R(x) - C(x) ==> P'(x) = R'(x) - C'(x) = 5-4.8 = 0.2>0 ==> profit increases

2.T    E(p) < 1, a rise in market price will lead to increase in revenue

3.F  

4.T

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