determine if lines are parallel or perpendicular

[littlejake117]

thank you miss lady:D you also sound attractive which makes guys wanna listen

[dubbylilluda]

u explain it wayyyyyyyyyyyyyyyyyyyyyyyy better than my math teacher

[zackattack513513]

10 times easier to understand you.... my math teacher can't teach =/

[brike76]

Do you have anything for graphing linear equations? 

[robichaudd]

@brike76 Yes, check out the playlists at my channel.

[YHB100]

You have no idea how much you've just helped me. From the bottom of my heart, thank you :)

[TheeUnstopableForce]

Thank you so much you help me!

[cungcung1]

thanks. It help me alot

[demarwall]

Thank you now i can pass my math test=))))))

[JustinlBieber]

THANK U SO MUCH!'(:

[bcrichlegend16]

a way easier way of finding slope is negative of the number next to x and y for example 2x+3y=10 the slope would be -2/3

[cherupii]

Omfg thank you so much!

But in Australia we have a different formula ahaha for y=mx+b we use y=mx+c thank you so much!! It's so easy to follow now

[kickassification23]

Thanks this helped me out ALOT!!!!

[BRRnDuhBaByy]

this helped me alot thank you soo much!(:

[Bri10anna10]

thank u soo much :) im starting to learn this stuff today in skool its hard to learn when my class talks alot but hear i understand it better i hope i pass the test on this ! :) thnx again

[22prince22billups1]

who dat?

[jake95mx1]

but this women or anonimous teaching teacher is very good ive seen diffrent videos of this someone and they are good thumbs up for u miss ??? anonymus

[ForTehFallenDreams]

woah you just helped me so much... school sucks i learned more right here!

:3

[jake95mx1]

@ForTehFallenDreams

well i think schools boring but not that it sucks but its hard for teachers to teach 20 kids well now its 40 but any ways teachers have time limits for every lesson they show u thats why its sometimes hard to learn but if you would get teach individualy you would learn in a zappp thats what i think and im a junior

[Jasonstvenson06]

Thank you so much for posting this on YouTube. You are a life Saver!!

[nvalle100]

OMG Mrs. Robichaudd! Thank you soooo much. You have been a God send to me. Why can't my teacher explain it the way you do? You rock Mrs. R!!!!!!

[dave19046]

thank you! 5 stars!

[jamesjp91]

thanks. your better than my math teacher.....plus its not 7:30 am so i can pay more attention to you lol

[keele18]

wew..... thanks a lot.... i love this vid not like my professor... ^^

[Gtrplyr1]

if you get two slopes that are reciprocals but positive numbers, it would be considered neither as well?

[robichaudd]

If the slopes are reciprocals, but have the same sign, then yes, it would be considered neither.

[Gtrplyr1]

thanks ;)

[Gtrplyr1]

Thank-you so much. i have my exam this wednesday, and this really helped!

[linkinmike37]

thank you!

[McJetter]

Thank you so much - this video helped me a lot

[drunkencommunist]

Dude, you are not a professor...you have absolutely no hair on your arms.(BY the way I know you are not a girl because of your name- Denise...How old are you?)

[MacsLittleHelper]

Thank you for the help!

[CharLoOoOoOt]

i wish i could have a tuitor that great as you! uhhmm..can you tuitor me online?

[robichaudd]

Glad the video helped! I don't have time to tutor online, the only types of questions I answer are followups to the videos. Check out WizIQ - there are people there who tutor online.

[mayapop14]

ohhh now its all clear thnk u so much....this helps a lot.... ^^.... i learned a lot on your tutorials ^^

[mayapop14]

my teacher in summer class says that perpendicular lines always have -1... now im confused coz u said that perpendicular lines always have negative reciprocle!!!

[robichaudd]

Both are true, just depends how you look at it.

If you multiply the two slopes together you'll get -1 for perpendicular lines. Example, m1=3 and m2=-1/3, 3*-1/3=-1.

If you just compare the slopes instead of multiplying them, they'll be negative reciprocals of each other for perpendicular lines. Example, again using m1=3 and m2=-1/3, -1/3 is the negative reciprocal of 3, or m2=-1/m1.