Interpret Quadratic Function Word Problems

Interpret Quadratic Function Word Problems

9th Grade

20 Qs

quiz-placeholder

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Interpret Quadratic Function Word Problems

Interpret Quadratic Function Word Problems

Assessment

Quiz

Mathematics

9th Grade

Practice Problem

Hard

Created by

Anthony Clark

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20 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The height of a water balloon that is launched into the air is given by h(t) = -5x2+20x+25. When will the balloon explode on the ground?

5 seconds

1 second

2 seconds

3 seconds

2.

MULTIPLE CHOICE QUESTION

1 min • 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

3.

MULTIPLE CHOICE QUESTION

1 min • 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

4.

MULTIPLE CHOICE QUESTION

1 min • 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

1 min • 1 pt

Media Image

A kid launches a rock off of a cliff. The height of the rock after t seconds can be modeled by the graph shown. When does the rock hit the ground?

1.094 seconds

174.141 seconds

155 seconds

4.393 seconds

None of the above

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

If each mark on the x-axis represents one second, when did the object reach the ground?

2.5 seconds

6 seconds

5.5 seconds

5 seconds

7.

MULTIPLE CHOICE QUESTION

1 min • 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

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