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Direct Variation Function – A function that can be modeled with the equation y = kx.
Inverse Variation Function – A function that can be modeled with the equation y = k/x, also xy = k; where k does not equal zero.
Joint Variation – When one quantity varies with respect to two or more variables.
ActivityGroups of 2 to 4Complete the handout
Supplies Graph Paper Scissors Glue Sticks Rulers
Reciprocal Function – The parent function of the inverse variation family of curves
f(x) = 1/x.
9-1 Inverse VariationEven Problems
9-2 Graphing Inverse VariationEvery Third Problem
Take a piece (or two) of graph paper if you need it.
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