# algebra quick test

1. Solve the system of equations.y = 2x² – 3y = 3x – 1 (1 point)no solution(–, 5), (2, –)(–, –), (2, 5)(, ), (2, 5)2. How many real number solutions are there to the equation 0 = –3x² + x – 4? (1 point)01233. Solve the equation by completing the square. If necessary, round to the nearest hundredth. x² – 18x = 19 (1 point)1; 19–1; 193; 6–3; 14. Solve. x² – 81 = 0 (1 point)0–9–9, 995. Which model is most appropriate for the data shown in the graph below? (1 point)quadraticlinearexponentiallineMatchingFor questions 6–9, match the equation to its corresponding graph. a. b. c. d. 6. y = –2x² + 2 (1 point)7. y = –x² (1 point)8. y = 2x² (1 point)9. y = 3x² – 4 (1 point)10. Graph the quadratic functions y = -2×2 and y = -2×2 + 4 on a separate piece of paper. Using those graphs, compare and contrast the shape and position of the graphs.(3 points)

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