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# Functions - Basics for Precalculus: Homework Help Chapter Exam

Exam Instructions:

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

### Page 1

#### Question 1 1. Which kind of transformation stretches or shrinks the graph of the function?

#### Question 2 2. Choose the answer that best describes the function of this graph.

#### Question 3 3. What is the domain of the function below?

#### Question 4 4. Choose the answer that best describes the function of this graph.

#### Question 5 5. The set of all of the x values of a function, is called the _____.

### Page 2

#### Question 6 6. Evaluate h(x) = 5x + 1, when x=3.

#### Question 7 7. The amount of money you spend on coffees every month can be calculated as a function of the number of drinks you order every month. What are the independent and dependent variables in this function?

#### Question 8 8. When the graph of f(x - 1) + 3 is changed into the graph of f(x + 1) + 3, the graph will shift in which direction?

#### Question 9 9. Which graph below is a function?

#### Question 10 10. Which of the following makes an equation a relation rather than a function?

### Page 3

#### Question 11 11. Which of the following is written in function notation?

#### Question 12 12. What is the domain of √(x)?

#### Question 13 13. Evaluate f(x) = √(x), when x = 9.

####
Question 14
14.
Choose the answer that best describes the function of this graph.
- Look at the graph that is shown below. Which answer choice best describes the function of this graph?

- Look at the graph that is shown below. Which answer choice best describes the function of this graph?

####
Question 15
15.
What is the range of the function: *g*(*x*) = |x| + 1

### Page 4

#### Question 16 16. Which equation matches the following graph?

#### Question 17 17. Which kind of transformation would change the purple function below into the yellow one?

#### Question 18 18. Choose the answer that best describes the function of this graph.

#### Question 19 19. Given the function below, evaluate g(7).

#### Question 20 20. The collection of all the outputs of a function is known as which one of the following?

### Page 5

#### Question 21 21. Which one of these functions has a domain of all real numbers?

#### Question 22 22. Which equation matches the following graph?

#### Question 23 23. What is the range of the function represented by the graph below?

####
Question 24
24.
Choose the answer that best describes the function of this graph.
- Select the best answer choice that describes the function of this graph.

- Select the best answer choice that describes the function of this graph.

#### Question 25 25. Which equation matches the following graph?

### Page 6

#### Question 26 26. Which set of ordered pairs is NOT a function?

#### Question 27 27. In the figure shown below, the graph of the yellow function is a translation of the graph of the blue function. If the expression for the blue function is y(x) = b(x), which of the following is the equation of the yellow function?

#### Question 28 28. If the graph of f(x) is shown below, which choice represents the graph of f(x + 1) + 2?

#### Question 29 29. All radical functions contain a(n) _____.

#### Question 30 30. If the domain of the function f(x) = x^2 is 0 ≤ x, what is the range of f?

#### Functions - Basics for Precalculus: Homework Help Chapter Exam Instructions

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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