A T-ball baseball player hits a baseball from a tee that is 0.6 m tall. The flight of the ball can be modelled by h(t) = -4.91 +61 +0.6, where h is the height in metres and t is the time in seconds. When does the ball reach its maximum height? Determine the maximum height of the ball. Answer to one decimal place. Suppose that f(x) and g (x) are both quadratic functions with graphs that open down. Explain how you know what type of function y = f (x) +g (x) must be. In which direction does the graph open? Where is the maximum point of this function in relation to the maximum points for the first two functions? Explain your answers.