Find the inverse of the function.f(x) = 
A. f-1(x) = 
B. f-1(x) = 
C. f-1(x) = 
D. Not a one-to-one function
Answer: A
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The monthly cost of driving a car depends on the number of miles driven. Julia found that in October it cost her $200 to drive 300 mi and in July it cost her $350 to drive 600 mi. Express the monthly cost C as a function of the distance driven d assuming that a linear relationship gives a suitable model.
Select the correct answer. a. C = –50d+0.5 b. C = 50d – 0.5 c. C = 0.5d + 50 d. C = 2d + 50 e. C = 0.5d – 50
Provide an appropriate response.Find integers m and n such that mn = 15 and m + n = 8.
A. 5, 8 B. -5, 3 C. 5, 3 D. -5, -3
Factor the polynomial completely using the trial and error method.- 16x3 + 4x2 + 15x4
A. x(3x + 2)(5x + 2) B. x2(15x - 1)(x - 4) C. (15x2 + 2)(x2 + 2) D. x2(3x - 2)(5x - 2)
The graph of a function f is given. Use the graph to answer the question.Use the graph of f given below to find f(20).
A. 0 B. 20 C. 30 D. -40