The height of a water balloon that is launched into the air is given by h(t) = -5t2 + 20t + 25. When will the balloon explode on the ground?
Real World Quadratic Functions

Quiz
•
Mathematics
•
9th Grade
•
Hard
Anthony Clark
FREE Resource
17 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
5 seconds
1 second
2 seconds
3 seconds
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The profit from selling local ballet tickets depends on the ticket price. Using past receipts, we find that the profit can be modeled by the function where p is the profit and x is the number of tickets sold: p= -15x^2 + 600x + 60 What is the maximum profit you can make from selling tickets?
$6060
$20
$600
$10,250
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The height of a rocket, at selected times, is shown in the table above. Based on this table, which statement is not a valid conclusion?
The rocket was launched from a height of 180 feet.
The maximum height of the rocket occurred 3 seconds after launch.
The rocket was in the air approximately 6 seconds before hitting the ground.
The rocket was above 300 feet for approximately 2 seconds.
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
5 seconds
1 second
2 seconds
3 seconds
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
14 feet
17 feet
19 feet
22 feet
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
24 feet
10 feet
-4 feet
3 feet
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
3 seconds
46 seconds
5 seconds
10 seconds
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