CFA Topic #1 Review

Which characteristics best describe the graph?

• Is a function

  Is quadratic

  Is continuous

  Is both increasing and decreasing

• Is a function

  Is linear

  Is discrete

  Is constant

• Is a function

  Is exponential

  Is discrete

  Is increasing

• Is a function

  Is exponential

  Is continuous

  Is decreasing

Which table shows y as a function of x?

• F

• G

• H

• J

Answer explanation

If the x-values don't repeat, it is a function.

What is the best way to describe this graph?

• The graph is increasing and decreasing

• The graph is constant

• The graph is decreasing

• The graph is increasing

• a

• b

• c

• d

• a

• b

• c

• d

Which characteristics best describe the graph?

Select TWO correct answers.

• Is linear

• Is quadratic

• Is exponential

• Is continuous

• Is discrete

The graph shows the linear relationship between the maximum area in square feet that can be painted and the number of gallons of paint used.

Which answer choice best describes the domain and range of the function in this situation?

• Domain: All real numbers greater than or equal to 0 and less than or equal to 2000

  Range: All real numbers greater than or equal to 0 and less than or equal to 5

• Domain: All real numbers

  Range: All real numbers

• Domain: All real numbers greater than or equal to 0 and less than or equal to 5

  Range: All real numbers greater than or equal to 0 and less than or equal to 2000

• Domain: All real numbers greater than or equal to 0

  Range: All real numbers greater than or equal to 0

Which graph represents y as a function of x?

• A

• B

• C

• D

Does the mapping represent a function?

• It is a function because the x-values in the domain do not occur more than once.

• It is not a function because the x-values in the domain occur more than once.

• It is a function because the y-values in the range do not occur more than once.

• It is not a function because the y-values in the range occur more than once.

Match each function to its graph.

• 
• 
•