real life parabola problems 2015.notebook
November 16, 2015
11/16/15
Objective: How do we solve real life quadratic problems?
4x2 ­8x ­ 21= 0
a) find the sum and product of the roots
b) describe the roots using the discriminant
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real life parabola problems 2015.notebook
November 16, 2015
If y = 4x2 ­ 8x ­ 21 What is the vertex or turning point?
How did you get your answer?
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real life parabola problems 2015.notebook
November 16, 2015
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real life parabola problems 2015.notebook
November 16, 2015
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real life parabola problems 2015.notebook
November 16, 2015
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real life parabola problems 2015.notebook
November 16, 2015
Find, correct to the nearest hundredth, the coordinates of the maximum point in the graph of the equation 6
real life parabola problems 2015.notebook
November 16, 2015
1)
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real life parabola problems 2015.notebook
2)
November 16, 2015
The equation h(t) = ­16t2 +160t + 2 represents the height of a toy rocket in feet that is launched from the ground. What is the maximum height the rocket will reach? To the nearest hundredth of a second, how long will it take the rocket to hit the ground?
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real life parabola problems 2015.notebook
November 16, 2015
3)
Olivia is standing on the 102nd floor of the Empire State building. If she threw a ball from that position the height of the ball, h, at time t seconds, could be modeled by the equation:
h = ­16t2 + 64t + 1224
a) how high above the ground in feet is the 102nd floor?
b) what is the greatest height the ball would reach?
c) How long will it take to reach that height? 9