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Unit 4 Test Questions

Last updated over 3 years ago

21 questions

7.1 Multiplying Exponents

1

1

1

7.2 Dividing Exponents

1

1

1

1

7.3 Rational Exponents

1

1

1

1

1

7.3 Rational Exponents (Part 2)

1

1

1

7.5 Exponential Functions

1

1

1

7.6 Growth and Decay

1

1

1

Question 1

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Question 2

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Question 3

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Question 4

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Question 5

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Question 6

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Question 7

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Question 8

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Question 9

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Question 10

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Question 11

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Question 12

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Question 13

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Question 14

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Question 15

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Question 16

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Question 17

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Question 18

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Question 19

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Question 20

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Question 21

21.

The area of a circle is found using the following formula where r represents radius.  Find the area of a circle with a radius of 5x.  

2

3

Write in radical form.

Write in exponential form.

12

8

2

15

Write in radical form.

What is the y-intercept, domain and range?

y-intercept: 1, domain: x > 0, range: all real numbers

y-intercept: 1, domain: all real numbers, range: all real numbers

Which is an exponential function, f(x) or g(x)?

f(x)

g(x)

Which has a constant rate of change, f(x) or g(x)?

f(x)

g(x)

Which equation represents exponential decay?

a

b

A certain fast-growing bacteria increases 6% per minute. If there are 500 bacteria now, how many will there be 10 minutes later?

895

512

A city’s population is about 124,000 and is decreasing at an annual rate of 0.2%. Write an equation that represents the population after 10 years?

169,000

121,542