Master proportional relationships with adaptive practice. Learn to find constants of proportionality, work with tables, and write equations.
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Create Free AccountA proportional relationship exists when two quantities always have the same ratio. In a table, the ratio between corresponding values stays constant. In an equation, it looks like y = kx, where k is the constant of proportionality.
The constant of proportionality (k) is the ratio between the two quantities. Divide y by x for any pair of values: k = y/x. This value stays the same for all pairs in a proportional relationship.