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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