Slope of a Line
The slope of a line measures its steepness and direction. It is fundamental to understanding straight lines.
Definition
Example: Finding Slope
Slope and Angle of Inclination
Types of Slope
Slope of Parallel Lines
Slope of Perpendicular Lines
Example: Perpendicular Slope
Collinearity
Practice Problems
- Find the slope of the line passing through and .
- If a line has slope , what is the slope of a line parallel to it?
- Find the slope of the line .
- Check if the points , , and are collinear.