1. A line of best-fit should not be drawn for which of the following graphs. A. B. C. D. Hint 2. Which pair of lines graphed below are parallel? A. l and n B. l and m C. k and m D. k and n Hint 3. Which inequality is graphed below? A. y > 8 B. x < 8 C. y < 8 D. y < 8 Hint 4. Use substitution to solve the system of equations given below.8x - 4y = 162x - y = 4 A. (0, -4) B. no solution C. infinitely many solutions D. (2, 0) Hint 5. What is the slope of the line through the points A(-3, 4) and B(2, -1)? A. 1 B. -1 C. -3 D. Hint 6. Find (4y - 5)(3y - 7). A. 12y2 + 35 B. 12y2 – 43y + 35 C. 12y2 – 43y - 35 D. 12y2 – 13y + 35 Hint 7. Find a number that when squared equals 484. A. 22 only B. None of these is correct C. -22 only D. 22 or -22 Hint 8. If f(n) = -6n + 2, find f. A. 9 B. -3 C. 8 D. 4 Hint 9. Solve a2 - a - 20 = 0 by completing the square. A. -4, 5 B. -5, 4 C. D. Hint 10. Determine the product (2x + 1)(x - 4). A. 2x2 + 8x - 4 B. 2x2 - 2x - 4 C. 2x2 - 7x - 4 D. 2x2 + 6x - 4 Hint 11. Find the equation that is nonlinear. A. y = 4y2 B. y = –3x – 1 C. y = 14 + 6x D. y = 8 – x Hint 12. Find the graph of y = x2. A. B. C. D. Hint 13. Which table shows a quadratic relationship? A. B. C. D. Hint 14. How does b affect graphs of equations in the form of ? A. b affects the width of the graph B. b affects the length of the graph C. positive values of b move the graph to the left, negative values move it to the right D. negative values of b move the graph to the left, positive values move it to the right Hint 15. Use the following table to find the amount of medicine remaining in the bloodstream after n hours. A. 500 × 0.85n B. 0.85 × 500n C. 425 × 0.85n D. 0.85n Hint 16. Find a solution to the equation by doing the same thing to both sides.3(5f + 7) + 9(f + 4) = 9 A. f = –12 B. f = –9 C. f = –10 D. f = –2 Hint 17. Use a graph to solve the system of equations.y = x2y = –x + 2 A. (1, 1), (4, –2) B. (–2, 4), (1, 1) C. (4, 1), (1, –2) D. (–2, 1), (1, 4) Hint 18. Select the figure that is a reflection. A. B. C. D. Hint 19. What is the scale factor of Figure A to Figure B? A. 2 B. C. D. 3 Hint 20. Solve the equation by backtracking. A. p = 12 B. p = 12 and p = –12 C. p = –12 D. p = –10 Hint