Explaining Quadratic Function Word Problems

Explaining Quadratic Function Word Problems

8th - 9th Grade

11 Qs

quiz-placeholder

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Explaining Quadratic Function Word Problems

Explaining Quadratic Function Word Problems

Assessment

Quiz

Mathematics

8th - 9th Grade

Hard

Created by

Barbara White

FREE Resource

11 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

The height of a water balloon that is launched into the air is given by h(t) = -5t2 + 40t + 2. From what height was the balloon released?

2 meters

5 meters

40 meters

20 meters

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

If a toy rocket is launched vertically upward from ground level with an initial velocity of 128 feet per second, then its height h after t seconds is given by the equation
h(t) = -16t2 +128t  
When will the object reach its maximum height?
4 ft
0 seconds
0 ft
4 seconds

3.

MULTIPLE CHOICE QUESTION

5 mins • 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
p= -15x2 +600x +60 , where x is the price of each ticket.  What is the maximum profit you can make from selling tickets?
$6060
$20
$600
$10,250

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Rafael drops a ball from a third-story window. This equation represents the approximate height, h, in meters, of the ball above the ground after it falls for t seconds.
h = -5t2 + 45 
When is the ball at ground level?
only at t = 0 seconds 
only at t = 3 seconds
only at t = 9 seconds
at both t = 0 seconds and t = 3 seconds

5.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Media Image
A ball is thrown into the air with an upward velocity of 100 ft/s. Its height, h, after t seconds is given by the function
 h = -16t2 + 64t + 960.
How many seconds did it take for the ball to reach its maximum height?
10 seconds
64 seconds
960 seconds
2 seconds

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Solve the word problem:  How fast would you reach the water if you jump of a cliff using the formula:    h(t) = -16t2 + 8t + 24?
8
1
1.5
1/4

7.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

How high would you jump if the equation for jumping from a cliff is:    
h(t) = -16t2 + 8t + 24?
25
24
8
26

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