###### Alissa Fong

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

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# Slope - Problem 5

Alissa Fong
###### Alissa Fong

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

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The slope of a line represents how steep the line is. Lines with positive slopes go up as you move from left to right, whereas negative slopes go down as you move from left to right. From a graph, you can count the slope as "rise over run," or "change in y over change in x." From two points, you calculate slope using m = (y2 - y1) / (x2 - x1 ) . Vertical lines always have an "undefined slope" or "no slope," whereas horizontal lines have slope = 0.

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