Algebra 2 > Slope
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QuickNotes™ 
Slope
The slope of a straight line is a measure of how steep the line is. Lines that increase as x increases have positive slopes, those that decrease as x increases have negative slopes.
Slope is defined to be the change in the y-coordinates of two points divided by the change in the x-coordinates of those points.
The slope is the same no matter which two points you pick to compute it.
A vertical line has no slope, a horizontal line has a slope of 0.
Non-vertical parallel lines have the same slope, non-vertical perpendicular lines have slopes whose product is 1.
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Carleen Eaton
Grant Fraser


