## Patterns, Relations, and Algebra

##### Created by:

Dallen5  on December 9, 2008

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# Patterns, Relations, and Algebra

 CoefficientA number that is multiplied by a variable in an equation or expression. In a linear equation of the form y = mx + b, the number m is the coefficient of x as well as the slope of the line.
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#### Definitions

Coefficient A number that is multiplied by a variable in an equation or expression. In a linear equation of the form y = mx + b, the number m is the coefficient of x as well as the slope of the line.
Coordinate pair A pair of numbers of the form (x, y) that gives the location of a point in the coordinate plane.
Function A relationship between two variables in which the value of one variable depends on the value of the other variable.
Linear relationship A relationship in which there is a constant rate of change between two variables; for each unit increase in one variable, there is a constant change in the other variable.
Origin The point where the x- and y-axes intersect on a coordinate graph.
Rise The vertical change between two points on a graph.
Run The horizontal change between two points on a graph.
Slope The number that expresses the steepness of a line. The slope of a line is the rise divided by the run.
X-intercept The point where a graph crosses the x-axis. What the x coordinate is when the y coordinate is zero.
Y-intercept The point where the graph crosses the y-axis. What the y coordinate is when the x coordinate is zero.
Variable A quantity that can change.
Table A list of values for two or more variables that shows the relationship between them.

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