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Review Quad. Word, Writing quad given zeros, solve using squ

Authored by Dorianne Cox

Mathematics

11th Grade

Used 1+ times

Review Quad. Word, Writing quad given zeros, solve using squ
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27 questions

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1.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

An object in launched directly upward at 64 feet per second (ft/s) from a platform 80 feet high. Its height is represented by the equation

s(t) = –16t2 + 64t + 80

What will be the object's maximum height?

2 ft

80 ft

144 ft

64 ft

2.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

You jump off a 24 foot high cliff and your fall is modeled by the function:

h(t) = -16t2 + 8t + 24

How long would it take you to hit the water?

8 seconds

1 second

1.5 seconds

1/4 second

3.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

You jump off a 24 foot high cliff and your fall is modeled by the function:

h(t) = -16t2 + 8t + 24

When would you reach 16 feet above the water?

8 seconds

1 second

1/2 second

1/4 second

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

A diver is standing on a platform above the pool. He jumps form the platform with an initial upward velocity of 8 ft/s. Use the formula: h(t) = −16 t2 + 8t + 24

How high is the platform?

.25 ft

24 ft

25 ft

8 ft

5.

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

What is the maximum profit you can make from selling tickets?

$6060

$20

$600

$10,250

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Heather dropped a water balloon over the side of her school building from a height of 80 feet. The approximate height of the balloon at any point during its fall can be represented by the following quadratic equation:

h = -16t2 + 80

About how long did it take for the balloon to hit the ground?

1.73 seconds

2.24 seconds

2.45 seconds

2.83 seconds

7.

MULTIPLE CHOICE QUESTION

15 mins • 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

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