5.5 Direct and Inverse Variation

5.5 Direct and Inverse Variation

Multiple Choice

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

• Yes; 1/4
• Yes; 4
• Yes; 2
• No

Multiple Choice

If y varies inversely as x, and y = 14 when x = 8, find y when x = 7.

• 16

• 20

• 24

• 28

Multiple Choice

If y varies inversely as x, and y = 23 when x = 8, find y when x = 4.

• 26

• 46

• 52

• 92

Multiple Choice

Does the table show an inverse variation?

• Yes
• No

Multiple Choice

Given the following equation, identify the constant k.
y = 54/x

• There is one.
• k = x
• 54
• y = k

Multiple Choice

What relationship does the table represent?

• Direct

• Inverse

• Neither

Multiple Choice

What relationship does the table represent?

• Direct

• Inverse

• Neither

Multiple Choice

Suppose y varies directly as x.
If  y = 22.5 when x = 15, find y when x = 20.

• 1.5
• 337.5
• 30
• 16.875

Multiple Choice

y varies inversely with x, and y is 0.5 when x is 4. Which equation represents this situation?

• y = 2x

• y = 2/x

• y = 4x

• y = x/2

Multiple Choice

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

• Direct. k = 12

• Inverse. k = 12

• Direct. k = 1/12

• Inverse. k = 1/12

Multiple Choice

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

• Yes. k = 1/3

• Yes. k = 3

• Yes. k = 5

• No

Multiple Choice

determine the constant of variation given
{(-15,3)  (-5,1)  (0,0)  (10,-2)}

• -1/5
• 10
• 2
• -5

Multiple Choice

 Y varies directly with x, and y is 84 when x is 16. Which equation represents this situation?

• y=1344x
• y=100x
• y=5.25x
• y=4/21x

Multiple Choice

Which of the following represents indirect variation?

• y = kx
• y = k/x
• y = x/k
• y = mx + b

Multiple Choice

Which of the following represents direct variation?

• y = kx
• y = k/x
• y = x/k
• y = mx + b

Multiple Choice

What is the constant (k) in this inverse variation?

• 12
• 24
• 48
• Not enough information given

Multiple Choice

Determine the type of variation:

• Direct
• Inverse
• Neither