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Mathematics 21 Online
OpenStudy (anonymous):

The equation of line AB is (y−3) = 5 (x − 4). What is the slope of a line perpendicular to line AB? 5 or 1/5?

OpenStudy (acxbox22):

the slope of the perpendicular line would be -1/5 because slope of any perpendicular line will be the opposite reciprocal

OpenStudy (anonymous):

@acxbox22 As I see, the site's policy says not to give away answers but to help them understand the concept and figure out the answer themselves. Please abide by ithe policy.

OpenStudy (acxbox22):

I helped him by telling him how to find out the slope of a perpendicular line for future problems--- opposite reciprocal

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