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Working with Absolute Values 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. Evaluate |r+4| - 3|s| when r = 5 and s = -1.

Question 2 2. If a question requires us to know the value of |2x + y|, but all we know is that |x + y| = 5, what can we do?

Question 3 3. Absolute value symbols should be treated like which one of the following?

Question 4 4. Evaluate |r+s|-(r+s) when -s = r+8.

Question 5 5. If a question requires us to know the value of y-x, but all we know is that x+2=y, what can we do?

Page 2

Question 6 6. What number can we substitute for x that will make the absolute value of x = 12?

Question 7 7. Solve the equation: |x + 8| = -1.

Question 8 8. Solve the equation: |x| = 99.

Question 9 9. Solve the equation: |3x - 9| = 27.

Question 10 10. Solve the equation: |2x - 5| = 5.

Page 3

Question 11 11. What is |-2.71828|?

Question 12 12. What is |3.14159|?

Question 13 13. Which colored lines represent the graph for y = -0.5|x|?

Question 14 14. Which is the graph for y = 4|x|?

Question 15 15. What is the graph of y = -|x|?

Page 4

Question 16 16. Which of the following is the formal definition of the absolute value of a number a?

Question 17 17. Which of the following is a characteristic of the absolute value function?

Question 18 18. If f(x) = |x|, what is f(9)?

Question 19 19. If f(x) = |x|, find f(-2).

Question 20 20. If f(x) = |x|, what is f(-14)?

Page 5

Question 21 21. Absolute values make positive numbers _____ and negative numbers _____.

Question 22 22. What is correct expression for the absolute value of the following number: 8?

Question 23 23. Evaluate |5 - 3| + 4|3 - 5|

Question 24 24. Which symbol is used to represent absolute value?

Question 25 25. Evaluate |4 + 7| - |4 - 7|

Page 6

Question 26 26. What type of compound inequality is it when both conditions must be true for the solution to work, or when the absolute value is less than?

Question 27 27. Graph the following inequality: |x| > 2

Question 28 28. Solve the following inequality:

Question 29 29. Which rule do you need to remember when solving a 1-variable absolute value inequality?

Question 30 30. When the arrows of an inequality go in opposite directions, or the absolute value is greater than, what type of a compound inequality are we working with?

Working with Absolute Values 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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