Chapter 8 Test Review 1. An arrow is shot into the air with an upward velocity of 64 feet per second from a hill 32 feet high. The height h of the arrow (in feet) can be found by using the model ℎ = −16𝑡 2 + 64𝑡 + 32 where t is the time (in seconds). When will the arrow be 64 feet above the ground? Round your answer to the nearest hundredth. (Yes this was on your review from Monday, and YES almost everyone got it wrong. I put step-by-step instructions on the answer page) Find the domain, range, maximum or minimum and the solution(s) (solutions is the same as zero and roots) of each graph below. 2. 3. Use the equation y = -(x – 2)2 + 4. 4. Is the graph opening up or down? 5. Does it shrink or stretch? 6. What is the vertex? 7. What is the maximum or minimum? 8. Solve by factoring. 6x2 - 10 = -11x 9. Solve. -3(x – 6)2 + 19 = 7 10. Solve by completing the square. 3x2 – 6x = 9 11. How many solutions does the equation have? 2x = 3 + 2x2 12. Solve using the quadratic formula. 12x = -9x2 – 4 13. Solve. Y = x2 – 4 Y = 5x – 10 14. Write the equation in vertex form. x2 – 2x = 48