Inverse Variation

Which table represents a direct variation?

• 
• 
• 
• 

Which equation represents an inverse variation?

As the speed of a train increases, the amount of time it takes to arrive at its destination decreases. What type of variation exists between the speed of the train and amount of time?

• Direct Variation

• Inverse Variation

• Neither

• Not enough information

The equation 
xy =  25  represents:

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

Given that y varies inversely with x, if x =7 and y = 4, what is y when x = 2?

• 14
• 10
• 2
• -14

Label the Variables in the equation

a

b

c

Output

Input

Constant of Proportionality

Kilometers