The relationship between two variables such that y = kx if k is a nonzero number. also, as one quantity increases, the second quantity increases or as one quantity decreases, the second quantity decreases.

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# The relationship between two variables such that y = kx if k is a nonzero number. also, as one quantity

The relationship between two variables such that y = kx if k is a nonzero number. also, as one quantity increases, the second quantity increases or as one quantity decreases, the second quantity decreases.