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Mathematics 19 Online
OpenStudy (anonymous):

I'm a little confused...someone help please?

OpenStudy (anonymous):

hartnn (hartnn):

hint : product of slope of perpendicular lines = -1

hartnn (hartnn):

so if one of the slope is 5 , whats the other ?

OpenStudy (anonymous):

-5 or -5/1 or -1/5 thats what I get confused about..

hartnn (hartnn):

ok, so product = -1 let other slope be 'x' so, \(\Large 5x =-1\) find x from here ?

hartnn (hartnn):

hint : *divide both sides by 5*

OpenStudy (anonymous):

-0.2

hartnn (hartnn):

that is -1/5 :)

OpenStudy (anonymous):

what if it was -2/3 instead of 5?

hartnn (hartnn):

\(\Large (-2/3)x=-1\) start by canceling the negative signs from both sides and multiplying by 3

OpenStudy (anonymous):

so it's -3?

hartnn (hartnn):

no.... \(\large -2x = -3 \\ \large 2x =3 \\ \large x = \dfrac{3}{2}\) got this ?

OpenStudy (anonymous):

Oh alright! Thank you!

hartnn (hartnn):

welcome ^_^

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