Determine whether f(x) represents a polynomial function.f(x) = 8x - 6
A. No
B. Yes
Answer: B
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Solve the problem.When making a telephone call using a calling card, a call lasting 5 minutes costs $1.50. A call lasting 12 minutes costs $2.90. Let y be the cost of making a call lasting x minutes using a calling card. Write a linear equation that models the cost of making a call lasting x minutes.
A. y = -0.2x + 2.5
B. y = 5x - 
C. y = 0.2x + 0.5
D. y = 0.2x - 9.1
Answer the question.Which of the following statements are true?I: A linear transformation from ? to ?n is called a linear functional.II: The convex hull of a closed set is closed.
A. II B. Both I and II C. I D. Neither I or II
Solve the motion problem.A boat moves 9 kilometers upstream in the same amount of time it moves 19 kilometers downstream. If the rate of the current is 9 kilometers per hour, find the rate of the boat in still water. (Round your answer to the nearest tenth, if necessary.)
A. 9 kilometers per hour B. 8.1 kilometers per hour C. 17.1 kilometers per hour D. 25.2 kilometers per hour
Differentiate.f(x) = ln(ex? tan 2x)Enter your answer without parentheses or labels, no multiplication dot.
Fill in the blank(s) with the appropriate word(s).