Determine whether the following function is continuous or discontinuous. Show your

calculation!

a. f(x)=

Question 5 Determine whether the following function is continuous or discontinuous. Show your calculation! x3 - 3x + 9 if x 2 1 a. f(x)= at X = 1 1/2x2 + 3x - 5 if x 3 d. A manufacturer makes fuel tanks for cars. The total weekly costs for the company to produce x tanks is C(x) = 10000 + 90x - 0.05x2 - Find the marginal cost function. - Use the marginal cost function to estimate the cost of 501 tanks and interpret the result. - Show the marginal cost is about the same as the cost of producing one more tank beyond 501