constant of variationor the
proportionality constant,and it defines the slope of the line. When the relationship is not a direct variation.
|Examples of Direct Variation|
|The circumference of a circle||is the diameter of the circle and the constant of variation is|
|The mass of an object||is the constant density of the object and is the volume.|
|Distance traveled at a constant rate.||The constant of variation is the rate and is the time spent traveling.|
Direct variation is closely related to other types of variation.