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www.reference.com/article/linear-relationship-fb8f05b50598c2a9

In a linear relationship, two variables or quantities are proportionate to one another. As one variable changes, there is a constant rate of change in another variable. In a graphic representation, a linear relationship is a straight line that passes through data points...

www.reference.com/article/linear-relationship-math-93dada4e2b8a5562

A linear relationship in mathematics is one in which the graphing of a data set results in a straight line. The formula y = mx+b is used to represent a linear relationship. In this formula m is the slope of the line, and b is the X-intercept. The graph of distance trave...

www.reference.com/article/linear-sequences-5c3cf38bf17b9298

Linear sequences are simple series of numbers that change by the same amount at each interval. The simplest linear sequence is one where each number increases by one each time: 0, 1, 2, 3, 4 and so on.

www.reference.com/article/dependent-variable-df09439a99a5c4cc

In math, a dependent variable is one in an expression, equation or function that depends upon one or more other variables' values to determine its value. The dependent variable is usually isolated on one side of an equation. For example, "x" is the dependent variable in...

www.reference.com/article/controlled-variable-90609668d52c728d

A controlled variable is the element or feature that cannot be changed during the course of an experiment. The controlled variable is kept constant so the changes in other variables can be observed more easily. According to About.com, it is also sometimes referred to as...

www.reference.com/article/variable-cost-741c99aae4359c1c

A variable cost is money that a company spends in direct proportion with its production output. As production goes up, so do the variable costs. If production drops, the variable costs drop as well. These differ from such fixed costs as advertising, rent, office supplie...

www.reference.com/article/variables-experiment-dc8ba20910aee47e

Variables are factors or quantities that may be change or controlled in a scientific experiment. The three types of variables in a science project or experiment are independent, controlled and dependent variables. The independent variable is the condition or factor th...