Question 691340: An object is thrown straight upward from the ground with an initial speed of 30 feet per second. Its height (h) after t seconds is given by the equation h(t) =
-5t2 + 30t. Find the domain for h(t).
A. (-∞, 0)
B. (6, ∞)
C. (0, 6)
D. All real numbers
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! An object is thrown straight upward from the ground with an initial speed of 30 feet per second. Its height (h) after t seconds is given by the equation h(t) =
-5t2 + 30t. Find the domain for h(t).
A. (-∞, 0)
B. (6, ∞)
C. (0, 6)
D. All real numbers
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Solve: -5t^2+30t = 0
-5t(t-6) = 0
t = 0 or t = 6
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As a function the Domain is "All Real Numbers".
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As an application to the physical problem the domain is (0,6)
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Cheers,
Stan H.
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