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OpenStudy (anonymous):
write an equation of the line containing the given point and perpendicular to the given line (7,9);2x+y=3
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OpenStudy (anonymous):
Do you know how perpendicular lines are related to eachother?
OpenStudy (anonymous):
It has to do with their slopes.
OpenStudy (anonymous):
yes
OpenStudy (anonymous):
How are they related?
OpenStudy (anonymous):
that i don't understand how
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OpenStudy (anonymous):
I will tell you. Their slops are negative reciprocals of eachother. So if line 1 has a slope \(\frac{a}{b}\) then a perpendicular line 2 would have a slope of \(\frac{-b}{a}\)
OpenStudy (anonymous):
So what is the slope of the line you've been given?
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