College Algebra 12th Edition Gustafson

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Multiple Choice/Short Answer a. 97 b 80 c. 124 d 125 e. 454

Identify the choice that best completes the statement or answers the question/Use the space provided to write your answer.

1. Let . Find the domain of the composite function.

2. Let Find the composite function. Please give the answer as an expression(not equation).

3. Tell where the function is increasing.

Please enter your answer in interval notation.

4. A phone company charges $13 64 per month plus $0.03 per call. How many calls can be made for an average cost of $0.14 per call?

5. Let Find the composite function.

6. Let f (x) = x 2 + x, g (x) = x 2 - 1. Find a. b. c. d = 0 e. y = 6x a. Yes, it is one-to-one. b. No, it isn't one-to-one.

Please give the answer as an expression(not an equation). .

7. When the temperature of a pot in a kiln is F, an artist turns off the heat and leaves the pot to cool at a controlled rate of F per hour. Express the temperature of the pot in degrees Celsius as a function of the time t (in hours) since the kiln was turned off.

Please enter your answer in the form T = .

8. Determine whether the function is one-to-one.

9. Select the correct graph and domain of the function. a.

Domain:

Domain: y = 2x + 7 a. Yes, it is one-to-one. b. No, it isn't one-to-one. a. No, it isn't one-to-one. b. Yes, it is one-to-one.

10. Sketch the graph of the piecewise defined function.

11. Let f (x) = 2x + 1, g (x) = 3x - 2. Find the function.

Please give the answer as a simplified expression (not an equation).

12. Let Find the composite function.

13. Let f (x) = 3x 2 , g(x) = 2x Find the function.

14. Find the inverse of the one-to-onefunction.

15. Let f (x) = x 2 , g(x) = 2x. Find the compositefunction .

Please give the answer as an expression(not an equation).

16. The function is one-to-one on the domain . Find .

17. Determine whether the function is one-to-one.

18. Determine whether the function is one-to-one.

19. Find the range of the function by finding the domain of .

Enter your answer using interval notation.

20. The graph of the function g(x) is a translation of the graph of f (x) = x 2 Graph the function.

21. A pizzeria charges $8.50 plus $0.60 per topping for a large pizza. Find a linear function that expresses the cost y of a large pizza in terms of the number of toppings x

Please enter your answer as an equation.