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Mathematics 23 Online
OpenStudy (anonymous):

HELP!! PARALLEL AND PERPENDICULAR LINES Find the slope of a line (a) parallel and (b) perpendicular to the line containing the ff points (3,4) (-5,-4). I know that m=1 but I don't know how to get the parallel and perpendicular lines. Thanks

OpenStudy (foxracer62):

do you still need help

imqwerty (imqwerty):

The product of slopes of perpendicular lines =-1 And the slope of parallel lines is same :)

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