1. Find the difference 15 - 26. A. -11 B. 41 C. 11 D. -41 Hint 2. The relation {(4, 6), (6, 1), (10, 2), (5, -1), (10, -2), (2, 6)} is _______. A. a function, because each element of the domain is paired with exactly one element of the range B. not a function, because the domain value 10 is paired with more than one element of the range C. not a function, because the range value 6 is paired with more than one element of the domain D. a function, because all of the elements of the domain are positive Hint 3. In the formula d = rt, the time t varies inversely as the rate r. A racing motorcycle traveling at 96 miles per hour completed one lap around a track in 1.5 minutes. How fast was the motorcycle traveling if it completed the next lap in 1.2 minutes? A. 171.5 mph B. 168.5 mph C. 76 mph D. 120 mph Hint 4. Write the point–slope form of an equation for the line passing through (2, –5) with slope A. B. C. D. Hint 5. If a line is drawn through points on a scatter plot and a negative relationship is shown, then _____. A. as the values of x increase, the values of y decrease B. the slope of the line is 0 C. the slope of the line is undefined. D. as the values of x increase, the values of y increase Hint 6. The graphs of the two equations y = 2x + 5 and are _______. A. neither parallel nor perpendicular B. parallel C. the same line D. perpendicular Hint 7. Suppose y varies inversely as x, and y = 9 when x = -4. What is the constant of variation? A. 36 B. 5 C. -13 D. -36 Hint 8. The Zero Product Property states that for all numbers a and b, if ab = 0, then ____________. A. a = 0 B. both a = 0 and b = 0 C. b = 0 D. a = 0, b = 0, or both a and b equal 0 Hint 9. Solve 4x2 = 9x. A. 4 and 9 B. 0 and C. 0 and D. 0 and Hint 10. The Quadratic Formula is developed by __________ a general form of a quadratic equation. A. finding the vertex of B. factoring C. completing the square for D. graphing Hint 11. Solve the system 3x + y = 11 and x – 2y = –1. A. (3, 2) B. C. (2, 3) D. (4, 1) Hint 12. Solve A. B. C. D. Hint 13. Find the product -8(2.8). A. 22.4 B. -22.4 C. -10.8 D. 10.8 Hint 14. Annette has \$15.00 to spend at the thrift store. She buys 5 shirts for \$1.00 each, 3 pairs of jeans for \$1.50 each, and 2 books for \$0.25 each. How much money does she have left? A. \$22.50 B. \$25.00 C. \$3.50 D. \$5.00 Hint 15. If you spin two spinners numbered one through ten, what is the probability of spinning a 2 the first one and an odd number the second? A. B. C. D. Hint 16. Choose the graph that expresses {(-3, 4), (-1, -5), (0, 2), (2, 3), (3, -4)}. A. B. C. D. Hint 17. Which is true of the equation y = cx where c is a constant? A. The graph will be decreasing. B. The graph will be increasing. C. The graph passes through the origin. D. The graph will always cross the x-axis at exactly one point. Hint 18. The lowest point of a quadratic function is called the ________. A. valley B. maximum C. minimum D. peak Hint 19. Use the quadratic formula to solve the equation x2 + x – 2 = 0. A. x = 3, x = 4 B. x = 1, x = -2 C. x = -1, x= 2 D. x = -3, x = -4 Hint 20. Which inequality represents the graph? A. y < x - 2 B. y x - 2 C. y x - 2 D. y > x - 2 Hint