Questions 7a,b 9a,b 10a

rm g the 7. For each quadratic function, determine the 1 Or maximum or minimum value. a) f (x) = x2 + 5x + 3 b) f (x) = 2x2 - 2x + 1 c) f(x) = -0.5x2 + 10x -3 d) f(x) = 3x2 - 4.8x e) f(x) = -0.2x2 + 3.4x + 4.5 form f) f(x) = -2x2 +5.8x -3 swer. 8. Convert each function to vertex form. a) y = x2 + ~x - 7 b) y = -x2 _ _ 5X c) y = 2x2 - 5 6' -x + 1 vays, ach pair Apply 9. a) Convert the quadratic function f(x) = -2x2 + 12x - 10 to vertex form by completing the square. b) The graph of f(x) = -2x2 + 12x - 10 is shown. Explain how you can use the graph to verify your answer. 8( X) =-2x2 + 12x-10 6 4 N 2 0 2 6 X mum 12 lue of 10. a) For the quadratic function y= -4x2 + 20x + 37, determine the maximum or minimum value and domain and range without making a table of values or graphing. b) Explain the strategy you used in part a)