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Chapter 2 math

Chapter 2

TermDefinition
Orderd Pair A pair of numbers(x,y) used to locate a point in a coordinate plane. The first number is the x-coordinate, and the second is the y-coordinate
Coordinate Plane A coordinate plane is formed by the intersection of a horizontal number line, usually called the x-axis and a vertical number line, usually called the y-axis.
X-axis The horizontal number line in a coordinate plane
Y-axis The vertical number line in a coordinate plane
X-coordinate The first coordinate in an ordered pair, which indicates how many units to move to the left or right from the orgin
Y-coordinate The second coordinate in an ordered pair, which indicates how many units to move up or down from the orgin
Linear Equation An equation whose graph is a line
Solution of a Linear Equation All of the points on a line
Slope A ratio of the change in y (the rise) to the change in x (the run)between any two points on a line. it is a measure of the steepness of a line
Slope- Intercept Form An equation written the form y=mx+b. The slope of the line is m and the y-intercept of the line is b
X-intercept The x-coordinate of the point where a line crosses the x-axis
Y-intercept The y-coordinate of the point where a line crosses the y-axis
Standerd Form A linear equation written in the form ax+by=c
Systems of linear Equations A set of two or more linear equations in the same variables
Solution of a System of Linear Equations an ordered pair that makes each equation in a system of linear equations true
Rise The change in y between two points on a line
Run The change in x between two points on a line
Created by: Preston Beasley