Inverse Proportion

y is directly proportional to x. y=2 when x=4, which of the following is the correct equation connecting y and x.

Y varies directly as x. If y = 12 when x = 15, what is y when x = 20?

• 4/5

• 17

• 16

• 25

Which equation exhibits a direct proportion?

• y = 5x - 2

• y = 3/4 x

• y - x = 4

• x = 6

Is this a direct proportion?

y=2x

• yes

• no

Which of the given graphs is a direct proportion?

• A

• B

• C

• D

• Linear equation

• Direct proportion

• Inverse proportion

• Joint variation

Which graph represents an inverse proportion relationship?

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• 
• 
• 

Given that y is inversely proportional to x, what is the general equation?

• 
• 
• 
• 

Which statement best describes an inverse proportion relationship between y and x?

• y increases then x will decrease

• y increases then x will increase

• y increases then x will remain the same

• y decreases then x will decrease

6 men can paint a building in 15 days. Find the number of days taken for 5 men to paint the same building.

• 10

• 14

• 18

• 22