A line that intersects every point on the graph.
A line that represents a set of data but does not intersect all the points.
A measure of the steepness of a line; compares the vertical distance to the horizontal distance.
A measure of how long the line is
The horizontal change compared to the vertical change
Change in x over a change in y
Y = 5x
Y = .5x
Y = 20x
Y = 15x
It slopes up
It slopes down
It is a horizontal line
It is a vertical line
It is constant, the same slope for the whole line
It can change throughout the line