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Unformatted text preview: x = c slope is undefined, xintercept is (c,0) Two lines are parallel if they have the same slope and different yintercepts Two lines are perpendicular if the product of their slopes is 1 (the slope of one is the negative reciprocal of the other) Vertical lines are perpendicular to horizontal lines To find xintercept : let y=0 and solve for x To find yintercept : let x=0 and solve for y Or put equation into slopeintercept form Slope m = rise run = 2 1 2 1 y y x x...
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 Spring '08
 HELENIUS
 Slope, Elementary mathematics, Line segment, Graph of a function, vertical line

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