Unit 7 Lesson 14 Practice Assignment

Unit 7 Lesson 14 Practice Assignment

9th Grade

41 Qs

quiz-placeholder

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Unit 7 Lesson 14 Practice Assignment

Unit 7 Lesson 14 Practice Assignment

Assessment

Quiz

Mathematics

9th Grade

Practice Problem

Hard

Created by

Crystal Minott

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41 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Partner 1

What is the vertex.

y = 3(x + 2)2 - 1

(2, -1)

(-2, -1)

(3, 2)

(-3, 2)

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Partner 2

What is the vertex?

y = -(x + 7)2 - 3

(7, 3)

(7, -3)

(-7, 3)

(-7, -3)

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Partner 2

What is the axis of symmetry of the given function?

y = 1

y = -1

x = 1

x = -1

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Partner 1

What is the equation of this graph?

f(x) = (x -5)2 + 1

f(x) = (x - 1)2 - 5

f(x) = (x + 1)2 - 5

f(x) = (x + 5)2 +1

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Partner 2

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

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Partner 1

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

3 mins • 1 pt

Partner 2

A frog is sitting on the ground when he is scared by a big dog. His movement is modeled by the equation h = -6t2 + 6t where h is the frog's height at any given time, t . How many seconds until the frog is back on the ground?

0.5 seconds

1 second

1.5 seconds

2 seconds

3 seconds

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