Graphing Logarithmic Functions

Question 1

Which function is shown in the graph?

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Answer image: //media.edgenuity.com/EVresources/3111-10-03-20-03-task/mc001-3.jpg

Question 2

Question 2

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x > 0; all real numbers

Question 3

Which points lie on the graph of f(x) = log9x? Check all that apply.

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Answer image: //media.edgenuity.com/EVresources/3111-10-03-20-04-task/mr002-2.jpg; (9, 1); (81, 2)

Question 4

The sound intensity of rustling leaves is 100 times the reference intensity. Use your graph to determine the sound intensity of rustling leaves in decibels. decibels

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20

Question 5

A whisper has a sound intensity of 30 decibels. Use your graph to help you complete the following statement.The sound intensity of a whisper is times the reference intensity.

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1000

Question 6

(5, 1)(5, 5)(11, 1)(11, 5)

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(5, 5)

Question 7

✔ x > –3x > –2x > 2x > 3

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✔ x > –3

Question 8

a translation 3 units right and 2 units upa translation 3 units left and 2 units upa translation 3 units up and 2 units righta translation 3 units up and 2 units left

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a translation 3 units right and 2 units up

Question 9

What are the domain and range of the logarithmic function f(x) = log7x? Use the inverse function to justify your answers.

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The domain is x > 0, and the range is all real numbers. The inverse function is f⁻¹(x) = 7ˣ, with domain all real numbers and range y > 0.

Question 10

Which table represents the graph of a logarithmic function with both an x-and y-intercept?

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Answer image: //media.edgenuity.com/EVresources/3111-10-03-20-09-task/mc001-2.jpg

Graphing Logarithmic Functions Answers

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