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Direct and Inverse Variation
Good for the basics
9
Mathematics
8th Grade
10/04/2011

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Cards

Term
What is the direct variation equation?
Definition
y=k*x
Term
What is the inverse variation equation?
Definition
y=k/x
Term
What is the constant (k) equation for direct variation?
Definition
k=y/x
Term
What is the constant (k) equation for inverse variation?
Definition
k=y*x or k=x*y
Term
What is the constant (k) equation for inverse variation?
Definition
k=y*x or k=x*y
Term
Does direct variation go through the origin?
Definition
ALWAYS!
Term
Does inverse variation go through the origin?
Definition
NEVER!
Term
What does a direct variation look like on a graph?
Definition
Always linear and always goes through the origin.
Term
What does an inverse variation look like on a graph?
Definition
It is a hyperbola and never goes through the origin
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