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# Function Graphs & Models 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. Function F increases at an increasing rate in the third quadrant before it reaches the origin. Then it decreases at a constant rate in the fourth quadrant. Which of the following shows one possible graph of function F?

#### Question 2 2. What is the main characteristic of a model of a linear relation?

#### Question 3 3. Which of the following is an example of a linear relation?

#### Question 4 4. Which of the following is a rational function?

#### Question 5 5. Which of the following do you need to graph a rational function?

### Page 2

#### Question 6 6. What type of graph is this?

#### Question 7 7. How do you determine what part of the graph to display in the model of a linear relation?

#### Question 8 8. The total number of hermit crabs in Hal's House of Hermits on a given day can be modeled by the function y = 50 + 2x, where x is the number of days the house has been in operation and y is the total number of hermit crabs. Describe the functional relationship between the number of days the house has been open and the number of hermit crabs it contains.

#### Question 9 9. Describe the behavior of this function: as x increases, what happens to y?

#### Question 10 10. What type of function is this?

### Page 3

#### Question 11 11. What is(are) the vertical asymptotes of the following function?

#### Question 12 12. Which of the following are true?

####
Question 13
13.
Consider the function *y = x + 2*. Describe the functional relationship between x and y in this function.

#### Question 14 14. What is the horizontal asymptote of the following function?

#### Question 15 15. When a function is decreasing at an increasing rate, what does the graph look like?

### Page 4

#### Question 16 16. What type of function is this?

#### Question 17 17. When a function is increasing at a constant rate, what does the graph look like?

#### Question 18 18. How many points do you need to plot to graph a rational function?

#### Question 19 19. What is the horizontal asymptote of the following rational function?

#### Question 20 20. What type of graph is this?

### Page 5

#### Question 21 21. Using the vertical line test, what can you determine about the following graph?

#### Question 22 22. Which of the following is true about a function?

#### Question 23 23. The graph pictured…

#### Question 24 24. Which of the following models the relation of the equation

#### Question 25 25. Can you describe the functional relationship between x and y by looking at a graph with no exact numbers?

### Page 6

#### Question 26 26. Does the following graph represent a function? Why or why not?

#### Question 27 27. Which of the following graphs represents a function?

#### Question 28 28. You see on the graph of a function that as x increases, y decreases at a constant rate. What will the graph look like?

#### Question 29 29. Which of the functions shown is decreasing at a greater rate?

#### Question 30 30. What is the horizontal asymptote of the following function?

#### Function Graphs & Models 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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