Math 6 – Unit 3 INTEGERS – STUDY GUIDE Section 1: Integers 1. Define Value: __________________________________________________________________________________________________ Absolute Value: __________________________________________________________________________________________________ Evaluate: 2. | 12 | 7. |-4| - |-2| 3. | -11 | 4. | 18.3 | 8. |4 +3 x 2| - |-10| 5. | -4 | + | 3 | 9. |-5| + |-2| - |3| 10. Plot the following numbers on a number line: -6, 0, 3, -1, 5, 3, -2 [T y p e a q u o t e 11. Write in ascending order. -175, 87, 0, -9, 12, -65, 3, 78, -32, -1, 14, 100 _________ ________ _______ _______ ______ _______ _________ ________ _______ _______ ______ _______ Describe each situation with an integer. 12. 390 feet above sea level 13. 23 yards lost __________ __________ 14. 34 degrees above zero __________ 15. 75 dollars deposited __________ 16. 55 dollars of debt __________ 17. 90 feet below sea level _________ Compare using >, <, = 18. -19 19. 14 20. 0 21. -7 ______ -15 22. 80 ______ -12 23. |12| _____ _____ _____ _____ | -19 | | -12 | -11 |-12| 24. |6 + 9| _____ |-18| 25. Which number has a higher absolute value: -15 or 10 ? Explain. __________________________________________________________ __________________________________________________________ 26. Which number has a higher value: -15 or 10 ? Explain. __________________________________________________________ Section 2: Inequalities Graph the following inequalities. 1. x>3 2. x ≤ -2 3. x≠6 4. x≥0 5. x < -5 6. x ≠ -1 Write the inequality that describes the graph. 7. 8. 9. 10. 11. Which inequality or inequalities do NOT use an open circle on the number line? Circle all that apply. A. < B. > C. < D. > E. ≠ 12. Which inequality or inequalities would have an open circle on the number line. Circle all that apply. A. > B. < C. > D. ≠ E. < Section 3: Coordinate Plane Graph the following points on the coordinate plane. Write the corresponding letter next to your point. 1. A: ( 3, -4) 2. B: ( 1, 6) 3. D: ( 0, 2) 4. G: (-2, 4) 5. K: (-9, -3) Name the corresponding letter for the given point. Then list the quadrant or axis where the point is located. 6. ( 7, 5 ) ______ ________ 7. ( -4, 2 ) ______ ________ 8. ( 0, -3 ) ______ ________ 9. ( -2, -1 ) ______ ________ 10. ( 10, 0 ) _______ ________ 11. The following points all lie on the ___________. (3, 0) (-5, 0) (9, 0) (-1, 0) Explain why. ________________________________________________________