Graphing Line and Using Slope Intercept Form

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Origin

(0,0) The point of intersection of the x-axis and y-axis in a coordinate system

Equation

A mathematical sentence that contains an equal sign

Slope

A measure of the steepness of a line. Given two points with coordinates (X1,Y1) and (x2,y2) on a line the slope, m, of the line is given m = rise/run= y2-y1/x2-x1

Ordered pair

A pair of numbers that give the location of a point on a x and y grid. for example graph (3, 2)

Coordinate plane

A plane that is divided into four regions by a horizontal line called the x-axis and a vertical line called the y-axis.

Linear Equation

An equation whose graph is a line.

x-intercept

The X-coordinate if the point at which it crosses the x axis (the y value is always 0)

y-intercept

The Y-coordinate of the point where the line crosses the y-axis. (the x value is always 0)

y=mx+b

the equation for graphing a line in slope intercept form

x-axis

the horizontal axis in a coordinate plane.

y-axis

the vertical axis in a coordinate plane.


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