1. Use elimination to solve the system of equations.-x + 2y = 18x + 8y = -38 A. (-5, -1) B. C. D. (-22, -2) Hint 2. Simplify (3a4b5c)4. A. 12a8b9c5 B. 81a16b20c4 C. 7a16b20c4 D. 3a16b20c4 Hint 3. Solve the system of equations y = 3x + 4 and by graphing. A. (-3, -5) B. (3, 5) C. D. Hint 4. Graph with vertices A(1, 2), B(4, 1), C(5, 3). Graph the image of with a scale factor of 2. A. B. C. D. Hint 5. Triangle RST has vertices R(-3, 2), S(0, -5), and T(4, 5). When translated R' has coordinates (4, 1). Find the coordinates of S' and T'. A. S'(7, -6), T'(11, 4) B. S'(-6, 7), T'(4, 11) C. S'(-7, 6), T'(-11, 4) D. S'(7, -6), T'(4, 11) Hint 6. Find the graph that does not have direct variation. A. B. C. D. Hint 7. Find the equation that contains a decreasing linear relationship. A. y = 4x – 3 B. y = 10 + x C. y = 5 – 6x D. y = 12+ 2x Hint 8. Find the table that represents a graph with direct variation. A. B. C. D. Hint 9. Which way does the graph of y = –2x2 open? A. right B. left C. down D. up Hint 10. What is the new equation if the graph y = 2x3 – 6x2 is moved down 1 unit? A. y = x3 – 6x2 B. y = 2x3 – 6x2 + 1 C. y = 2x3 – 6x2 – 1 D. y = 2x3 – 5x2 Hint 11. Find which equation does not represent a reciprocal relationship. A. B. –6 = ef C. D. ab = 3 Hint 12. How does b affect graphs of equations in the form of ? A. b affects the length of the graph B. positive values of b move the graph to the left, negative values move it to the right C. b affects the width of the graph D. negative values of b move the graph to the left, positive values move it to the right Hint 13. Identify the decay factor in the equation p = 1,508,069 × 0.89n where p is the bacteria population and n is the number of days after a vaccine was administered. A. 0.89 B. n C. p D. 1,508,069 Hint 14. Find the table that does not represent an exponential equation. A. B. C. D. Hint 15. 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 16. Select the figure that is a reflection. A. B. C. D. Hint 17. Select the figure that is a reflection. A. B. C. D. Hint 18. A figure has rotation symmetry of 8°. How many identical parts must there be? A. 40 B. 272 C. 70 D. 45 Hint 19. Translate the figure using the given vector. A. B. C. D. Hint 20. Rule: (x, y) (x – 6, y + 1). Find the correct translation. A. B. C. D. Hint