1. The formula for the area of a trapezoid is Solve the formula for h. A. B. C. D. Hint 2. Write in standard form where A, B, and C are integers whose greatest common factor is 1. A. B. 3x - 8y = 16 C. 3x - 8y = 2 D. 3x + 8y = 16 Hint 3. 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 4. A. B. C. D. Hint 5. Find [6,3,-1]. A. B. C. [3 3 -1] D. Hint 6. Solve [3x 8y] = [-12 1] for x and y. A. x = -12 y = 1 B. x = -4 y = 8 C. x = -4y = D. x = 4 y = 1 Hint 7. Evaluate A. B. 4 C. D. 3 Hint 8. Simplify A. B. C. D. Hint 9. Solve the equation  a2 + 4a = -3 by graphing or by factoring. A. 1, 3 B. -3, 1 C. -3, -1 D. -1, 3 Hint 10. Find the vertex of the graph of the function  f(x) =  x2 - 6x + 5. A. (3, -4) B. (3, 4) C. (-6, 5) D. (-3, 4) Hint 11. If Molly's car gets 24 miles for each gallon of gasoline, and she has 8 gallons of gasoline in her tank, how far can she drive before having to stop and get gas? A. 96 miles B. 192 miles C. 24 miles D. 3 miles Hint 12. Solve the inequality –13 < -5x – 3 < 17. A. {x | -4 < x < 2} B. {x | 4 > x > -2} C. {x | 2 < x < -4} D. {x | -2 < x < 4} Hint 13. What is the inequality represented in the graph? A. 3x + 2y 0 B. 3x – 2y 0 C. 3x + 2y 0 D. 3x – 2y 0 Hint 14. Which of the following properties does not hold for matrices? A. associative property of multiplication B. left distributive property C. commutative property of multiplication D. right distributive property Hint 15. Which of the following is prime? A. 7x2 – y2 B. 3xy + 13x2 C. 5xy>2 + 10y D. 3x2 – 6y Hint 16. Simplify A. B. C. D. Hint 17. Simplify A. B. C. 2 D. Hint 18. Solve A. B. C. D. Hint 19. If the vertex of a parabola is (3, -4), what is its axis of symmetry? A. y = 3 B. x = 3 C. y = -4 D. x = -4 Hint 20. Find the axis of symmetry of the following function: A. x = B. x = 7 C. x = –7 D. x = Hint