TEST: Negative Numbers and the Number Line Multiple Choice: For problems 1 – 14, bubble the correct answer on your answer sheet. 4 points per question 1. Which inequality is false? A. −5 > 0 2. 4. 5. C. 5 > 0 D. 0 > −5 Write an inequality for the following statement: −21C is colder than −2C. A. −21 > −2 3. B. 0 > −5 B. −21 < −2 C. 21 > 2 D. 21 < 2 Which situation cannot be represented by −14? A. 14 feet below sea level B. a debit of $14 C. a gain of 14 yards D. a withdrawal of $14 Which situation cannot be represented by 16? A. 16 feet below sea level B. 16F above zero C. a credit of $16 D. a deposit of $16 Use the number line to compare the pair of numbers. Which statement is NOT true? 6. 7. A. −5 is to the left of 2 B. 2 is to the right −5 C. 2 is less than −5 D. −5 is less than 2 If -9 < -1, then A. −9 is to the right of −1 B. −9 is to the left of −1 C. −1 is to the left −9 D. −9 is greater than −1 If −4 is to the left of 0, then which of the following is NOT true? A. 0 is to the right of −4 B. −4 is to the right of 0 C. −4 < 0 D. 0 > −4 8. 9. Order the set of numbers from least to greatest: 5, −19, −25, 7, 22, -4, −15 A. -4, 5, 7, -15, -19, 22, -25 B. 22, 7, 5, -4, -15, -19, -25 C. -4, -15, -19, -25, 5, 7, 22 D. -25, -19, -15, -4, 5, 7, 22 The table shows a monthly bank account statement for the period from July to October. In which month was the account overdrawn by the least amount? A. July 10. 14. −20 August 5 September 25 October −15 C. September D. October B. │−22│ > │18│ C. │−22│ = │18│ B. │7│ > │-7│ C. │7│ = │-7│ Which inequality is false? A. │9│ > 0 13. July Replace ? with <, > or =: │7│ ? │-7│ A. │7│ < │-7│ 12. Change in Price Replace ? with <, > or =: │−22│ ? │18│ A. │−22│ < │18│ 11. B. August Company B. │-2│ > -│2│ C. │15│ > │-12│ D. 9 > │14│ Which statement is true? A. The opposite of 4 is 8. B. The opposite of 7 is -7. C. The absolute value of 9 is -9. D. The opposite of 9 is 9. Death Valley is a desert in northern California with many places of interest. One such place is the Badwater Basin, the elevation is -282 feet. At another location, Salt Creek Trail, the elevation is -220 feet. Write an inequality to compare the elevations. Which elevation is closer to sea level. A. -282 > -220; -282 B. -282 > -220; -220 C. -282 < -220; -282 D. -282 < -220; -220 Short Answer: For problems 15 - 17, write your answers and show your work in the spaces provided on your answer sheet. 15. Whole Numbers and their Opposites a. Give the opposites of 4 and -2. b. Draw a horizontal number line to represent 4, -2 and their opposites. Use intervals of 1 and use a ruler. Score Description 2 1 0 a. correct and specific answers of -4 and 2 (may not write 4 = -4; not true) b. correct number line with intervals of 1; -4, 4, 2, and -2 plotted correctly; arrows on the end of the number line. a. correct and specific answers of -4 and 2 (may not write 4 = -4; not true) or b. correct number line with intervals of 1; -4, 4, 2, and -2 plotted correctly; arrows on the end of the number line. Relevant response but did not meet criteria. Test Points 11 9 6 0 16. Shannon owes $15 to her sister Megan and $20 to her brother Bryan. Her brother Michael owes $45 to Shannon, and her best friend Whitney owes $10 to Shannon. a. Shannon writes the number -15 to represent the amount she owes Megan. What numbers should Shannon use to represent the other amounts? Label your answers. 2 points for correct answers with labels; 1 point for partially correct answers b. How much does Shannon owe total? Show your work. 2 points for correct answer and work; 1 point for answer only c. Who owes the most money? 1 point for correct answer d. What is greater, the amount of money Shannon owes or the amount of money owed to Shannon. Explain your reasoning. 2 points for correct answer with correct reasoning Score Description 7 points 4 5 or 6 points 3 2 3 or 4 points 1 1 or 2 points 0 0 points B Blank Test Points 22 20 16 14 11 0 17. The table shows the average elevation of three oceans. Ocean Average Elevation Pacific Ocean -4,300 m Atlantic Ocean -3,300 m Arctic Ocean -1,050 m a. Which ocean has a greater depth, Pacific Ocean or Atlantic Ocean? b. Which of the three oceans has the least depth? c. What is the difference in elevation between the shallowest ocean and the deepest ocean? Show your work. Score Description 2 1 0 B a. Pacific Ocean b. Arctic Ocean c. 3250 meters; with work and units At least two parts correct. One or no parts correct. Blank Test Points 11 9 6 0