Snowball Tossing! Let h(t) be the height of a snowball tossed from the top of a building. We will use the function h(t)=-16t + 32t+

Snowball Tossing! Let h(t) be the height of a snowball tossed from the top of a building. We will use the function h(t)=-16t² + 32t+ 128 to model the situation. The graph of this function will look like this: Snowball Thrown from Rooftop 160 140 120 100 80 60 Height (ft) 0 

a) What is the practical meaning of the value 128 for this function? How about the point at 4 seconds? 

b) What effect does the sign of the coefficient -16 have on the graph of the function? 40 20 0 1 2 3 4 5 Time(s) 

c) If we are given a quadratic function in standard form, can we find any value for x given y, or vice versa?