Questions on Quadratics

Questions on Quadratics

9th Grade

15 Qs

quiz-placeholder

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Questions on Quadratics

Questions on Quadratics

Assessment

Quiz

Mathematics

9th Grade

Hard

Created by

Anthony Clark

FREE Resource

15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

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

1 min • 5 pts

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

1 min • 5 pts

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

1 min • 5 pts

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

1 min • 5 pts

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

1 min • 5 pts

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 + 10

How many seconds does it take the ball to reach its maximum height?

1.25 seconds

1.4 seconds

2.5 seconds

2 seconds

7.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

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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