Chuck stone is standing on top a higher platform. He fires a rock up into the air with his slingshot. Well it is in flight, the rocks distance above the ground is a quadratic function of time. At times one, two, and three seconds after he fired it, the rock is 68, 96, and 114 m above the ground, respectively. This shows that the graph of the quadratic function includes the points: (1,68) (2,96) (3,114) a.) write the particular equation from the rocks distance above ground (d) as a function of time (t).

b.) What is the highest the rock will be above ground?

c.) how high is the platform? (The rock is at the platform level when t = 0.)