When modeling real world situations, we often use what's called inverse variation to describe a relation between two variables. Inverse variation is a relation in which the absolute value of one variable gets smaller while the other gets larger. Inverse variation and direct variation are important concepts to understand when learning equations and interpreting graphs.
Sample Problems (6)
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Tell whether each relationship is an inverse variation:
Tell whether the relationship 3xy = -10 is an inverse variation.
If the points (½,4) and (x,1⁄10) are solutions to an inverse variation, find x.