Constant Of Proportionality Definition (Illustrated ... - Math Is Fun

Math is Fun ABCDEFGHIJKLMNOPQRSTUVWXYZ Definition of Constant of Proportionality more ... Constant of Proportionality

The constant value (often written k) relating amounts that rise or fall uniformly together.

It is the ratio of the amounts y and x:

k = y/x

Put another way: y = kx

Example: you are paid $20 an hour The constant of proportionality is 20 because: Pay = 20 × Hours worked You get paid $20 for 1 hour, $40 for 2 hours etc.

See: Constant, Proportion, Ratio Directly Proportional Copyright © 2025 Rod Pierce

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