APPLICATIONS OF QUADRATICS
Provide the reasoning about WHAT I did and WHY I did it. Use the second column to do this. Some questions that may help you get started are: what am I trying to find?; what method did I use?; why did I perform that mathematical step? Do not just recap that I multiplied or divided….I want rich descriptions. The letters do not need to line up with one another; type as much as you need to.
Problem:
Dawson kicked a football from the ground and it followed the projectile where is the time in seconds, and h is the height of the ball in feet. Answer the following questions about the scenario:
- a) How long was the ball in the air when it was at its maximum height? Round to two decimal
places if needed.
- b) What is the maximum height the ball reached? Round to two decimal places if needed.
- c) How long was the ball in the air? Round to two decimal places if needed.
What I Did Mathematically
WHAT I did & WHY I Did It –YOU Explain
a)
b)
-15(25)+750
-375+750
375 feet
- c) -15t(t-10)=0
t=0
t=10
Which answer makes sense and why?
a)
b)
c)