A ball is thrown upward from the top of an 800 foot tower. It's height above ground, h, t seconds after being fired is given by: h(t)=-16t² +64t+800. The graph y=h(t) is given below: ►h(t) H 10 1. The point (4, 800) lies on this graph. Interpret what this means in terms of height and time. For questions 2-4 answer the question in each of three ways: a. Estimate the answer by looking at the graph above. b. Obtain a more accurate estimate by graphing y=h(t) on your graphing calculator and using the appropriate function (zero/intersect or maximum) under the CALC menu. c. Obtain the exact answer by using algebra. (Show your work!) 2. What is the maximum height reached by the ball? At what time does it reach that height?
A ball is thrown upward from the top of an 800 foot tower. It's height above ground, h, t seconds after being fired is given by: h(t)=-16t² +64t+800. The graph y=h(t) is given below: ►h(t) H 10 1. The point (4, 800) lies on this graph. Interpret what this means in terms of height and time. For questions 2-4 answer the question in each of three ways: a. Estimate the answer by looking at the graph above. b. Obtain a more accurate estimate by graphing y=h(t) on your graphing calculator and using the appropriate function (zero/intersect or maximum) under the CALC menu. c. Obtain the exact answer by using algebra. (Show your work!) 2. What is the maximum height reached by the ball? At what time does it reach that height?
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter9: Quadratic Functions And Equations
Section9.6: Solving Quadratic Equations By Using The Quadratic Formula
Problem 64PFA
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Transcribed Image Text:A ball is thrown upward from the top of an 800 foot tower. It's height above ground, h, t
seconds after being fired is given by: h(t)=-16t² +64t+800. The graph y=h(t) is given
below:
◆h(t)
0
3
:6
:8
9
10
1. The point (4, 800) lies on this graph. Interpret what this means in terms of height and time.
For questions 2-4 answer the question in each of three ways:
a. Estimate the answer by looking at the graph above.
b. Obtain a more accurate estimate by graphing y=h(t) on your graphing calculator and
using the appropriate function (zero/intersect or maximum) under the CALC menu.
c. Obtain the exact answer by using algebra. (Show your work!)
2. What is the maximum height reached by the ball? At what time does it reach that height?
2a.
2b.
Page 1 of 4
2c.
800-
600-
400-
200-
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