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Functions (quadratic)

Authored by Wayground Content

Mathematics

9th - 12th Grade

Functions (quadratic)
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20 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

The height of a diver is shown.


The diver is in the air for more than 3 seconds.

True

False

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

95 feet

87 feet

223 feet

142 feet

3.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

The height of an object thrown into the air can be modeled by the formula y=16x2+70x+95y=-16x^2+70x+95 , where y is in feet after x seconds.
What is the height of the object after 5 seconds?

95 feet

45 feet

70 feet

171.56 feet

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A ball is thrown into the air with an initial velocity of 40 meters per second. The height of the ball at any time t can be modeled by the equation h(t) = -9.8t^2 + 40t + 5, where h(t) is the height in meters and t is the time in seconds. How long does it take for the ball to reach a height of 20 meters?

1.5 seconds

3.2 seconds

4.8 seconds

2.04 seconds

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Fireworks are fired from the roof of a 100-foot building. The equation h(t) = -16t2 +84t + 100 models the height, h(t), of the fireworks at any given time, t. How high do the fireworks get?

2.625 ft

6.25 ft

100 ft

210.25 ft

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

A ball is thrown into the air with an upward velocity of 40ft/s. Its height h in feet after t seconds is given by the function :
 h(t)=16t2+40t+10h\left(t\right)=-16t^2+40t+10  
How many seconds does it take the ball to reach its maximum height?

1.25 seconds

1.4 seconds

2.5 seconds

32 seconds

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The equation  h(t)=16t²+12t+3h\left(t\right)=-16t²+12t+3  represents the path of a projectile. 


What are the units the problem is measured in?

meters per second

feet per second

meters per minute

feet per second

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