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Mathematics 7 Online
OpenStudy (anonymous):

What is the equation of a line perpendicular to the line y= -1/3x+1 passing through the point(2,7)?

OpenStudy (anonymous):

slope of the given line is -1/3. so the perpendicular line will have slope of 3. do you know why

OpenStudy (anonymous):

Why?????

OpenStudy (anonymous):

because product of slope of perpendicular lines is -1.

OpenStudy (anonymous):

one has slope -1/3 so the other will have slope 3. if we multiply both we will get -1.

OpenStudy (anonymous):

Thanks for explaining it.

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