1. Which operation should be used to solve the equation n + 13 = 42? A. Add 42 to each side. B. Add 13 to each side. C. Subtract 13 from each side. D. Subtract 42 from each side. Hint 2. If n is the number of seconds between the lightning and the thunder and f(n) is the number of feet between you and the lightning, then f(n) = 1100n. If n is 7, find f(n). A. 8800 feet B. 157.1 feet C. 9000 feet D. 7700 feet Hint 3. Three ordered pairs for f(n) = 2n - 1 are (-1, -3), (1, 1), and (2, 3). Graph the function. A. B. C. D. Hint 4. If d = 55t represents the distance you travel at 55 miles per hour, find (t, d) when t = 4 hours. A. (4, 55) B. (4, 110) C. (4, 165) D. (4, 220) Hint 5. Which equation passes through the points (-1, -1), (0, 1), and (1, 3)? A. y =+1 B. y = -2x+1 C. y = 2x+1 D. y = x+1 Hint 6. What value of x makes x + 27 = 13 a true statement? A. 40 B. -14 C. -40 D. 14 Hint 7. Find the slope of the line that passes through A(-3, 2) and B(1, 3). A. - B. 4 C. -4 D. Hint 8. State the slope and y-intercept of the graph of y = -x + 2. A. The slope is , and the y-intercept is -2. B. The slope is 2, and the y-intercept is -. C. The slope is -2, and the y-intercept is -. D. The slope is -, and the y-intercept is 2. Hint 9. Graph y = -2x - 1 using the slope and y-intercept. A. B. C. D. Hint 10. The scatter plot shows the relationship between study time and test scores. Which equation could be used to describe a best-fit line? A. y = 3x + 62.5 B. y = x + 62.5 C. y = -x + 62.5 D. y = x + 62.5 Hint 11. The scatter plot shows the relationship between miles driven and fuel used. Which equation could be used to describe a best-fit line? A. y = x B. y = x C. y = x D. y = x Hint 12. A ladder rises 20 feet for every horizontal change of 4 feet. What is the slope of the ladder? A. B. 4 C. 20 D. 5 Hint 13. The number of calories Kira burns while riding a bike varies directly with the number of hours the bike is ridden. How many calories are burned in 60 minutes? A. 60 B. 960 C. 2880 D. 480 Hint 14. What is the constant of variation of the data shown in the table? A. 260 B. 65 C. 130 D. not proportional Hint 15. Peter makes \$6 an hour raking leaves and \$8 an hour babysitting. He wants to work a total of at least 15 hours this week and make at least \$100. Write a system of inequalities that represents this situation. A. r + b ≤ 156r + 8b ≤ 100 B. b + r ≥ 156b + 8r ≤ 100 C. r + b ≥ 156r + 8b ≥ 100 D. b + r ≤ 156b + 8r ≤ 100 Hint 16. Sharon studied for at least 4 hours for her French and geography tests. She spent no more than one more hour studying for her French test than her geography test. Write a system of inequalities that represents the time she spent studying for these tests. A. F + G ≥ 4F ≤ G + 1 B. F + G ≤ 1F ≤ G + 4 C. F + G ≥ 1F ≤ 4G D. F + G ≤ 4F ≥ G + 1 Hint 17. The graph shows the results of a survey of 200 students asking their favorite summer activity. How many more chose reading than tennis? A. 40 B. 20 C. 4 D. 200 Hint 18. The Venn Diagram shows the names of students who played soccer and softball. Which students played both? A. Ling and Lisa B. Sue and Bobbie C. Jane and Ling D. Liza and Lexie Hint