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anonymous
 5 years ago
Quadratic functions problem..
The following function gives the height h metres, of a batted baseball as a function of the time, t seconds, since the ball was hit.
h = 4.5t2 + 13.5t + 5.875
a) What is the physical significance of the 5.875? Prove this is true.
b) Determine the characteristics of the quadratic function (hint: Write in standard form).
c) What is the geometric significance of the left tintercept of the graph? Why does this point have no real physical meaning?
anonymous
 5 years ago
Quadratic functions problem.. The following function gives the height h metres, of a batted baseball as a function of the time, t seconds, since the ball was hit. h = 4.5t2 + 13.5t + 5.875 a) What is the physical significance of the 5.875? Prove this is true. b) Determine the characteristics of the quadratic function (hint: Write in standard form). c) What is the geometric significance of the left tintercept of the graph? Why does this point have no real physical meaning?

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0a) The initial height is 5.875, because plugging in t=0 gives so. I think this is what they want not sure. b) Factor our 4.5 and then complete the square c) It shows at which time the ball hits the ground, it has no physical meaning because the time is negative.
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