Identify Direct and Indirect Variation

Which equation below represents a direct variation?

• y = -2x

• y = -3x -5

• y = -1

• x + 3y = 15

Is the given table a direct variation? If so, what is the constant of variation?

• Yes; 1/3

• Yes; 3

• Yes; 5

• No

Which of the given graphs is a direct variation?

• A

• B

• C

• D

Is the given table a direct or inverse variation? What is the constant of variation?

• Direct, 12

• Inverse, 12

• Direct, 1/12

• Inverse, 1/12

• direct variation
• inverse variation
• joint variation
• none of these

• direct variation
• inverse variation
• joint variation
• none of these

• direct variation
• inverse variation
• joint variation
• none of these

Determine the type of variation:

• Direct

• Inverse

• Neither

What relationship does the table represent?

• Direct

• Inverse

• Neither

Is the following graph direct, inverse, or neither?

• Direct

• Inverse

• Neither