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The function h(t) = 4.9t? + 8t +5 represents Jennifer's height (h) in meters above the water t seconds after she leaves the diving board. What is the value of h(2) and what does it mean in the situation? A. 1.4 meters; 2 seconds after she leaves the diving board, she is 1.4 meters above the water. B. 1.4 seconds; When she is 2 meters above the water, she has been in the air 1.4 seconds. C. 1.95 meters; 2 seconds after she leaves the diving board, she is 1.95 meters above the water D. 1.95 seconds; When she is 2 meters above the water, she has been in the air 1.95 seconds.

User Robertwest
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1 Answer

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h(t)=-4.9t^2+8t+5

so after 2 seconds we get


h(2)=-4.9\cdot4+8\cdot2+5=1.4

so the answer is A

User Gkocjan
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