1. Find the value of A. -14 B. -56 C. 5 D. 14 Hint 2. Evaluate a - b2 if a = 4 and b = 3. A. -13 B. 13 C. 1 D. -5 Hint 3. The formula for the area of a trapezoid is Solve the formula for h. A. B. C. D. Hint 4. Graph the solution set of A. B. C. D. Hint 5. Solve A. B. C. D. Hint 6. In a science experiment, students hung a cup from a spring and measured the length of the spring when candies were added to it. Their data are shown in the table below. Which statement is true? A. The relation is a function because the range values increase. B. The relation is not a function because there are two y values for some x values. C. The relation is a function because for each x value, there is exactly one y value. D. The relation is not a function because only a line can be a function. Hint 7. Describe the line that is graphed below. A. passes through the point (3,-2) with a slope of B. passes through the point (3,-2) with a slope of C. passes through the point (3,2) with a slope of D. passes through the point (3,-2) with a slope of Hint 8. State the number of solutions to the system of equations graphed below. A. 2 B. 0 C. 1 D. infinitely many Hint 9. Use the elimination method to solve the system of equations. A. B. C. D. Hint 10. Solve the system of inequalities by graphing. A. B. C. D. Hint 11. Which is not a point at which a maximum or minimum value of a function could occur for the feasible region? A. (-3, 0) B. (0, 3) C. (1, 5) D. (-3, 6) Hint 12. A feasible region has vertices at (4, 6), (-2, 3), (2, -2), and (3, 1). At which point is the maximum value of the function f(x, y) = 2x + y? A. f(-2, 3) B. f(4, 6) C. f(3, 1) D. f(2, -2) Hint 13. Josh has 40 minutes to complete a government exam. There are 15 multiple-choice questions worth 3 points each. There are also 5 short-answer questions worth 11 points each. It takes about 2 minutes for Josh to answer the multiple-choice questions m and about 8 minutes to complete the short-answer questions s. The system of inequalities that represents this problem is graphed below. Which ordered pair is not a vertex of the feasible region? A. (15, 0) B. (20, 0) C. (0, 5) D. (0, 0) Hint 14. Selena has 31 days to complete her quilt for the county fair. The blue squares in the quilt can be sewn at a rate of 4 squares per day, and the white squares at a rate of 7 squares per day. The quilt can have up to 96 squares total. The blue fabric b costs about \$0.80 per square and the white fabric w costs about \$1.20 per square. Selena wants to keep costs at a minimum. Write an inequality that expresses the total number of squares to be sewn. A. B. C. D. Hint 15. The solution of a system of three linear equations in three variables, x, y, and z, is called a(n) ____ (x, y, z). A. integer B. ordered triple C. sum D. ordered pair Hint 16. Name the sets of numbers to which belongs. A. Rationals and Reals B. Naturals, Wholes, Integers, Rationals, and Reals C. Integers, Rationals, and Reals D. Irrationals and Reals Hint 17. Solve the equation x – 82 = 143 A. 225 B. C. 61 D. -61 Hint 18. Solve the equation A. B. 9 C. 1 D. 20 Hint 19. Solve the equation 3y + 8 = 36. A. B. 20 C. D. 4 Hint 20. The Waxmans just opened a carpet store. Their startup costs were \$5000, and their cost of carpet is \$8 per square yard. How many square yards of carpet do they need to sell in order to break even if they sell the carpet for \$18 per square yard? A. 278 square yards B. 50 square yards C. 192 square yards D. 500 square yards Hint