Direct & Inverse Variation

What does the Direct Variation Equation look like?

• y= kx
• y = mx + b
• y = b
• y = x

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

What kind of equation is this?
xy=8

• Linear Equation
• Direct Variation
• Inverse Variation
• Joint Variation

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

• Yes; 1/4
• Yes; 4
• Yes; 2
• No

Determine the type of variation:

• Direct
• Inverse
• Neither

What ordered pair does a direct variation always go through when graphed?

• (0, 0)
• (1, 0)
• (0, 1)
• (1, 1)

True or False:
An inverse variation is always a curve and a direct variation is always a line?

• True
• False

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

• 12
• 24
• 48
• Not enough information given

What is the constant (k) in this inverse variation?
y = 400/x

• x
• y
• 400
• Not enough information given