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Mathematics 9 Online
OpenStudy (anonymous):

Write a formula for the slope of a line that is perpendicular to the line through the points (x1,y1),(x2,y2)

OpenStudy (anonymous):

slope of the line=(x2-x1/y1-y2)

OpenStudy (anonymous):

It says that is perpendicular.

OpenStudy (anonymous):

hm, i told u the answer

OpenStudy (anonymous):

What's the slope of the line through the two points? When two lines are perpendicular, how are their slopes related? Use those two facts to get the slope of the perpendicular line.

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