1 (1 point) Solve the problem. Your company uses the quadratic model y = -4.5x2 + 150x to represent the average number of new customers who will be signed on (x) weeks after the release of your new service. How many new customers can you expect to gain in week 16? Question 1 options: a) 2328 customers b) 48 customers c) 1248 customers d) 624 customers Save Question 2 (1 point) Solve the problem. If a ball is thrown upward at 64 feet per second from the top of a building that is 180 feet high, the height of the ball can be modeled by feet, where t is the number of seconds after the ball is thrown. After how many seconds does the ball reach its maximum height? Question 2 options: a) 4 sec b) 2 sec c) 5.6 sec d) 1 sec Save Question 3 (1 point) Solve the problem. A ball is tossed upward. Its height after t seconds is given in the table. Find a quadratic function to model the data. Use the model to determine when the ball reaches its maximum height, as well as the value of the maximum height. Question 3 options: a) The ball reaches a maximum height of 40 feet in 1.5 seconds. b) The ball reaches a maximum height of 44.6 feet in 1.6 seconds. c) The ball never reaches a maximum height. d) The ball reaches a maximum height of 50 feet in 2.1 seconds. Save Question 4 (1 point) Solve the problem. A ball is thrown downward from a window in a tall building. The distance traveled by the ball in t seconds is take the ball to fall 80 feet? where s is in feet. How long (to the nearest tenth) will it Question 4 options: a) 1.5 sec b) 2.3 sec c) 1.3 sec d) 2.2 sec Save Question 5 (1 point) Use the graph of the function on your calculator to estimate the x-intercepts. f(x) = 4x2 - 19x - 5 Question 5 options: a) x = -1, x = 20 b) x = -5, x = 0.25 c) x = -0.25, x = 5 d) x = 4, x = -5 Save Question 6 (1 point) Use factoring to solve the equation. 4x2 - 24x + 32 = 0 Question 6 options: a) 0, 2, 4 b) 2, 4 c) -2, -4 d) 4, 2, 4 Save Question 7 (1 point) Use the quadratic formula to solve the equation. x2 - x = 12 Question 7 options: a) -3, 4 b) 3, 4 c) 1, 12 d) -3, -4 Save Question 8 (1 point) Use the square root method to solve the equation. y2 - 18 = 0 Question 8 options: a) 9 b) c) 3 d) 324 Save Question 9 (1 point) Find the exact solutions to the quadratic equation in the complex numbers. (x - 9)2 = -16 Question 9 options: a) 9 4i b) 9 8i c) -9 4i d) 4i 9 Save Question 10 (1 point) Determine if the vertex of the graph is a maximum point or a minimum point. y = -(x + 5)2 Question 10 options: a) Maximum b) Minimum Save Question 11 (1 point) Provide an appropriate response. Write the equation of the quadratic function whose graph is shown. Question 11 options: a) y = (x - 5)2 + 5 b) y = -(x - 5)2 + 5 c) y = -(x + 5)2 + 5 d) y = -2(x - 5)2 + 5 Save Question 12 (1 point) Find a quadratic function that best fits the data. Give answers to the nearest hundredth. Question 12 options: a) y = -0.03 + 3.78x - 6.74 b) y = -1.40x2 + 27.15x - 14.44 c) y = 5.66x2 - 39.888x + 99.29 d) y = 1.40x2 + 27.15x + 14.44