An object is thrown upward from ground level at a velocity of 90 feet per second.
Use the position equation s = -16t2 + v0t + s0 to select a function that represents the situation and select the graph of the function.
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A. s = -16t2 + 90t
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B. s = -16t2 - 90t
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C. s = 16t2 + 90t
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D. s = 16t2 - 90t
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E. s = -16t2 + 90t + 8
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Answer: A
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A. 
B. 
C. 
D. 
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