Quadratics Word Problems Area

Quadratics Word Problems Area

9th Grade

18 Qs

quiz-placeholder

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Quadratics Word Problems Area

Quadratics Word Problems Area

Assessment

Quiz

Mathematics

9th Grade

Practice Problem

Hard

CCSS
8.EE.A.2

Standards-aligned

Created by

Anthony Clark

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18 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 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

2.

MULTIPLE CHOICE QUESTION

1 min • 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

3.

MULTIPLE CHOICE QUESTION

1 min • 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

4.

MULTIPLE CHOICE QUESTION

1 min • 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 = -16t^2 + 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

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

A

B

C

D

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The sum of a number and its square is 72. Find the number(s).

8 or 9

8 or -9

-8 or 9

-8 or -9

Tags

CCSS.8.EE.A.2

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

You and some friends went to a haunted house on Halloween. The mummy scared one friend so much that she jumped into the air! The equation h = -4t2 + 2t models her jump where h is her jump's height in feet t seconds after the mummy scares her. When did she reach her maximum height?

0.1 seconds

0.25 seconds

0.50 seconds

1 second

2 seconds

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