This math tutorial shows the relationship of a slope to a straight line and how to write equations in point-slope or slope-intercept form.

Given two points, the slope and a point, or the slope and the y-intercept, the student will write linear equations in two variables.

This study guide on lines in a coordinate plane covers key terms, what different line slopes look like, postulates about parallel and perpendicular lines, the slope-intercept equation, how to graph parallel and perpendicular lines, and...

Learn about the intersection of two straight lines with this helpful reference tool. Provides a detailed definition, examples, and an interactive activity that enhance further explanation. Includes links to related topics.