Direct, Inverse, Joint Variation

If Y varies directly with X, and Y = 24 when X = 6, find Y when X = 8.

• 144

• 32

• 18

• 10

What type of variation is represented by this equation?

• Direct

• Inverse

• Joint

• None

What type of variation is represented by this equation?

• Direct

• Inverse

• Joint

• None

What type of variation is represented by this equation?

• Direct

• Inverse

• Joint

• None

What type of variation is represented by this scenario? The amount of time that has passed versus how much water is left in a bath as it drains.

• Direct

• Inverse

• Joint

• None

What type of variation is represented by this scenario?

The more hours you work versus the money in your bank account.

• Direct

• Inverse

• Joint

• None

What type of variation is represented by this scenario?

The number of lottery tickets you buy versus your chances of winning the lottery.

• Direct

• Inverse

• Joint

• None

If Y varies inversely with X, and Y = 60 when X = 3, find Y when X = 18.

• 180

• 20

• 57

• 10

If Y varies directly with the product of X and Z, and Y = 320 when X = 8 and Z = 20, what is the value of K?

• 2

• 80

• 40

• 16

The gallons of water in a pool varies directly with how many minutes the drain has been open. If there are 300 gallons in the pool after the drain has been open for 2 min, how long will it take for there to be 50 gallons remaining?

• 0.33333 minutes

• 6 minutes

• 20 minutes

• 12 minutes