whole py MCR3U - Functions Unit 3 - Quadratic Functions (and Radicals) 14. Date Find the equation of the quadratic function that has the vertex at (2, 7) and y-intercept (0,-1). You may leave your equation in vertex form. [ / 3] 15. Accurately sketch the inverse of the function f (x) shown, then state the domain and range of the inverse f-1(x) [ / 2] -6 5 N 7 -6 -5 4 -3 -2 -10 1 2 3 4 5 6 7 Domain = { Range = {and 1 41 MCR3U - Functions Unit 6 - Exponential Functions 32. Date The doubling period of a strain of cell is 10 hours. Biologists in the lab is trying to culture (grow) the cells from an initial sample of 20 cells. a. Write an equation that models this scenario. Make statements that define/explain what each variable represents and their units (for example, "P(t) is the number of residents"). [ /2] b. Use your equation from part a to determine the number of hours it takes to reach a culture size of 185 cells. Round your answer to the nearest whole number. Use the logarithm method of solution or guess and check, show your work. Include a concluding [ / 2] statement.X201 sdes 17. A baseball is struck by a batter and begins to fly through the air; it's height (h) in meters vs time (t) in seconds can be modelled by the equation h(t) = -5x2 + 20x + 1. How much time does the ball spend in the air before it lands on the ground (uncaught). Solve using the quadratic formula x = - -btvb2-4ac round your answer to the nearest 2 decimal place. Include 2a units and a concluding statement. [ / 2] ative observation ta tothe observat Q = - 5 - 20 + 20'- 41-5)(1) b: 20 2 (-5) C = 1 = -20+ 420 2 (-5 ) =-20#2(105) 2 (- 5)