use y=mx+b :)
so lets take a look at this... what do you know about the slope of perpendicular lines?
Perpendicular...means it has the negative reciprocal slope of the other line's slope...what is the negative reciprocal of 5...?
I'll let @iheartfood continue :)
hahah kk @johnweldon1993 feel free to jump in tho if u want! :) but that's right! perpendicular means that it will have a slope that is opposite reciprocal :)
noting really i just got back in to geometry i didnt really learn a whole lot
okay... so basically that's all you need though! :) correct me if i'm wrong @johnweldon1993... i might be forgetting something here lol... but i do believe that you are solving for the y-int by plugging in. so -1=m(-3) + b.. solving for b but @johnweldon1993 i'm forgetting, are we solving with 5 as the m value? or -5?
so it would be y+1=-1/5(x+3)
no, not quite.. @johnweldon1993 can you please take a look when you get the chance? @redcarter we are solving for "b" ur y-int using either -1=(5)(-3) + b or -1=(-5)(-3) +b but i can't remember which.. so lets wait so he/she can take a look :)
Well firstly lets get straight on what the slope will be....the negative reciprocal of 6 is -1/5 this will be your 'm' value Then you can use the point slope formula as @primeralph has shown above is... \[y - y1 = m(x - x1)\] you would take your point (-3,-1) (x,y) and plug those in for x1 and y1 so y - (-1) = (-1/5)(x - (-3)
then just simplify the equation
*edit in that first post....negative reciprocal of 5***** is -1/5 **not 6
oh whoops lol i meant -1/5 haha my bad ;P
i'll let @johnweldon1993 take it from here haha since iheartfood obviously can't remember correctly :P lol sorry bout that!
haha don't worry about it @iheartfood good way to start explaining it though! :)
I just noticed @redcarter ...your previous post "so it would be y+1=-1/5(x+3)" YES! just simplify it :)
a medal for me?
haha nice drawing @primeralph and yup @johnweldon1993 :) tho i totally blanked out haha :P sorry about that @redcarter... you were right! anyways, glad u got help :)
lmao now I'm glad I gave you a medal @primeralph xD nice drawing! haha
Thanks guys. Mathemartist me.