Direct or Inverse

Constant of Variation

Direct Variation

Inverse Variation

I Dunno

100

y=7/x

What is Inverse Variation

100

Given y=-5x What is the constant of variation

100

If y varies directly and y=2 when x=6. find y when x=9

What is y=3

100

Given that y varies inversely with x and y=3 when x=2. Find y when x=3

What is y=2

100

If x and y vary directly as x increases what happens to the value of y.

What is increases

200

y=4x

What is Direct Variation

200

If y varies directly with x and y=-4 when x=2. What is the constant of variation?

What is k=2

200

If y varies directly with x and y=80 when x=16. Find y when x=3.

What is y=15

200

Given that y varies inversely with x and y=.5 when x=10. Find y when x=2

What is y=2.5

200

Is y=x/18 an example of direct variation, inverse variation, or neither?

What is Neither

300

r=9/d

What is Inverse Variation

300

If y varies inversely with x and y=40 when x=16. What is the constant of variation?

What is k=640

300

1. Given that y varies directly with x, use the specified values to write a direct variation equation that relates x and y.
x=9
y=27

What is y=3x

300

If y varies inversely with x and y=9 when x=1. What is x when y=3.

What is x=3

300

If x and y vary inversely find the missing value. (10 , 12) (x , 5)

What is x=24

400

The graph of this makes a line that passes through the origin

What is Direct Variation

400

If y varies inversely with x, use the point (3,7). What is the constant of variation.

What is k=21

400

Given y varies directly with x and y=7 when x=14. Find x when y=9.

What is x=18

400

If y varies inversely with x and y=1/3 when x=9. Find x when y=9

What is x=1/3

400

If x and y vary inversely, as x increases. What happens to the value of y?

What is decreases.

500

xy=5

What is Inverse Variation

500

If y varies directly with x and y=28 when x=7.

What is k=4

500

Given that y varies directly with x, use the specified values to write a direct variation equation that relates x and y. Then find x when y = 45 y = 18 x =2

What is y=9x and x=5 when y=45

500

Given that y varies inversely with x, use the specified values to write an inverse variation equation that relates x and y. y = 2 x = 1

What is y=2/x

500

If y varies inversely with x and y=7 when x=-4. Find y when x=5

What is y= -28/5

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