Linear Equations and Their Graphs
Graphs and Functions
Solving Systems of Equations
MA, Stanford University
Teaching in the San Francisco Bay Area
Alissa is currently a teacher in the San Francisco Bay Area and Brightstorm users love her clear, concise explanations of tough concepts
Finding the Slope of a Line from 2 Points -
Vertical lines always have no slope, or undefined slope. The equation looks like x = constant. Horizontal lines have slope zero, and have equation y = constant.
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