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Mathematics 9 Online
OpenStudy (gokuporter):

http://prnt.sc/d5rybp

OpenStudy (steve816):

Remember that a slope that is perpendicular will have the opposite reciprocal!

OpenStudy (steve816):

First, figure out the slope of AB using this:|dw:1478831218501:dw|

OpenStudy (triciaal):

first use the formula shown by @steve816 and find the slope tell what your answer is before we continue

OpenStudy (steve816):

Yeah, waiting for his answer haha

OpenStudy (triciaal):

|dw:1478831863716:dw|

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