In math, direct variation is a proportional linear relationship between two variables that can be expressed as the equation y = kx, where y and x are variables and k is a constant.

A direct variation is a proportionality relationship in which two quantities follow a direct relationship. This implies that an increase (or decrease) in one quantity leads to a …

Direct proportionality or direct variation is the relationship between two variables such that an increase in one variable results in a proportional increase in the other variable.

Jul 23, 2025 · Direct variation is a mathematical relationship between two variables in which one variable is a constant multiple of the other. In other words, when one variable changes, the …

A direct variation is a linear equation that can be written in the form y = kx , where k is a nonzero constant. The number k is called the constant of proportionality or constant of variation.

Direct variation or direct proportionality is a mathematical relationship between two variables where one variable varies in direct proportion with respect to the other variable.

Here you will learn about direct variation, including the constant of variation, the equation that represents direct variation, and interpreting the graphs of direct variation.

Direct variation refers to a relationship between two variables where when one variable increases the other also increases by the same factor. Conversely, when one variable decreases, the …

We say that y y varies directly with x x if y y is expressed as the product of some constant number k k and x x. If we isolate k k on one side, it reveals that k k is the constant ratio between y y …

Students learn to recognise, model and analyse direct variation relationships of the form y=k x n . They analyse how the constant k and the exponent n affect the relationship between 2 variables.