#### Technology required. Two rocks are launched straight up in the air. The height of Rock A is given by the function f where f(t) = 4+30t - 16t^2. The height of Rock B is given by g where g(t) =5 + 20 t - 16t^2 . In both functions, t is time measured in seconds and height is measured in feet. Use graphing technology to graph both equations. Determine which rock hits the ground first and explain how you know.

homework help
two rocks are launched straight up in air
CCSS.HSF-BF.A.1.a.Q.A1.BQF.6
HSF-BF.A.1.a
quadratic equations

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