A measure of the steepness of a line on a graph; rise over run
The coordinate of the point where the graph of a line crosses the x-axis
The y-coordinate of the point where the graph of a line crosses the y-axis
slope intercept form
A linear equation written in the form y = mx+b, where m represents slope and b represents the y-intercept
An equation whose solutions form a straight line on a coordinate plane.
When a line goes up and to the right
When a line goes down and to the right
The slope of a horizontal parallel to the x-axis; x=0
The slope of a vertical line parallel to the y-axis; y=0
An input-output relationship that has exactly one output for each input
The value substituted into an expression or function
The value that results from the substitution of a given input into an expression or function
Systems: parallel lines
The lines never interect and have no solution.
Systems: Same lines
The line is the same, it has the same slope and Y-intercept and has infinite solutions.
Systems: Intersecting lines
Two line that cross or intersect have a single point as a solution