# Worksheet_2 - B us 14B Online Worksheet#2 Show all work on...

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Bus 14B - Online Worksheet #2 Show all work on answer sheet. Then submit as an email attachment or bring to R308d (or R201) by deadline. 1) Suppose the cost of producing x items is given by C(x) = 3600 - x 3 and the revenue made on the sale of x items is R(x) = 300x - 12x 2 . a) Find the number of items which serves as a break - even point. b) Find quantity to maximize profit. c) GRAPH/Label CRP Graph this rational function, label the vertical and horizaontal asymptotes. 2) y = 5x + 2 x + 3 3) A college student invests \$7000 in an account paying 8% per year compounded annually. In how many years will the amount at least quadruple? Find the limit. If possible, factor first. 4) lim x ± 10 x 2 - 100 x - 10 5) lim x ± 3 x 2 + 7x - 30 x 2 - 9 6) lim x ± 0 1 x + 3 - 1 3 x (First, simplify fraction.) Find the limit as h approaches zero. 7) lim h ± 0 (x + h) 3 - x 3 h 8) Find the interest earned on \$10,000 invested for 6 years at 6.9% interest compounded quarterly. Find all values where the function is discontinuous (the denominator can never equal zero) and graph (factor first!).

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