Unit 4 Test Questions

Last updated about 3 years ago

21 questions

7.1 Multiplying Exponents

7.2 Dividing Exponents

7.3 Rational Exponents

7.3 Rational Exponents (Part 2)

7.5 Exponential Functions

7.6 Growth and Decay

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Unit 4 Test Questions

Last updated about 3 years ago

21 questions

7.1 Multiplying Exponents

Question 1

Question 2

Question 3

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.

7.2 Dividing Exponents

Question 4

Question 5

Question 6

Question 7

7.3 Rational Exponents

Question 8

2

3

Question 9

Question 10

10.

Write in radical form.

Question 11

11.

Question 12

12.

Write in exponential form.

7.3 Rational Exponents (Part 2)

Question 13

13.

12

8

Question 14

14.

2

15

Question 15

15.

Write in radical form.

7.5 Exponential Functions

Question 16

16.

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

Question 17

17.

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

f(x)

g(x)

Question 18

18.

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

f(x)

g(x)

7.6 Growth and Decay

Question 19

19.

Which equation represents exponential decay?

a

b

Question 20

20.

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

Question 21

21.

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

Question 1

Question 2

Question 3

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.

Question 4

Question 5

Question 6

Question 7

Question 8

2

3

Question 9

Question 10

10.

Write in radical form.

Question 11

11.

Question 12

12.

Write in exponential form.

Question 13

13.

12

8

Question 14

14.

2

15

Question 15

15.

Write in radical form.

Question 16

16.

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

Question 17

17.

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

f(x)

g(x)

Question 18

18.

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

f(x)

g(x)

Question 19

19.

Which equation represents exponential decay?

a

b

Question 20

20.

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

Question 21

21.

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