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Off-Topic => Chatterbox => Topic started by: Reier on March 15, 2013, 01:44:09 PM

Title: MATH
Post by: Reier on March 15, 2013, 01:44:09 PM: DOIN COLLEGE ALGEBRA ONLINE

THIS IS ACTUALLY WHAT I'M GREETED BY WHEN GRAPHS COME UP

(http://i.imgur.com/o3danGU.png)
Title: Re: MATH
Post by: Naryar on March 15, 2013, 03:53:50 PM: Should be the part of the graph which is both under the line y = 2x +4 and over the line y = 1,5x +3

Considering one is mostly 3/2nds of the other, they intersect at x = -2.

Never used a graphical method to solve equations like that, but it seems obvious enough.
Title: Re: MATH
Post by: Badnik96 on March 15, 2013, 03:59:57 PM: I'm about 90% sure we did that in 9th grade
Title: Re: MATH
Post by: Kossokei on March 15, 2013, 04:50:42 PM: Ditto. IIRC, on the graph you're supposed to shade in everything that X can be, and then everything that Y can be, and then you have to shade what they have in common.

Edit: you shade in stuff I know you do

Double Edit: okay no I got it now you shade in all of the x,y values that can solve the first inequality, then all of the x,y values for the second one, then shade in what they have in common. Then, specifically for that question it's asking you to use an ordered pair from the section you shaded in to prove you're correct.

Math isn't my strong suit.
Title: Re: MATH
Post by: HurricaneAndrew on March 15, 2013, 05:02:11 PM: **** math. I used to be beast at algebra, but never was worth dick at graphical equations.
Title: Re: MATH
Post by: Noodle on March 16, 2013, 12:19:25 AM: This sh** reminds me of those online IT video lectures I had last semester.
(http://puu.sh/lMKJ)
(http://puu.sh/lMMc)
(http://puu.sh/mQiu)
(http://puu.sh/nTL4)
(http://puu.sh/qjsC)
(http://puu.sh/rtOh)

I kid you not, these are from the video lectures.
(http://puu.sh/ru3n)
(http://puu.sh/ru3t)
(http://puu.sh/ru3M)
(http://puu.sh/ru4y)

Next-->Fext
(http://puu.sh/ru9T)
Title: Re: MATH
Post by: Resetti's Replicas on March 16, 2013, 12:55:24 AM: I thought you were supposed to finish algebra in high school. The graph looks like crap but the problem is actually really straightforward as long as you don't shade anything till you're absolutely sure.
Title: Re: MATH
Post by: Kossokei on March 16, 2013, 02:29:22 PM: Quote from: Sonny_Resetti on March 16, 2013, 12:55:24 AM
I thought you were supposed to finish algebra in high school. The graph looks like crap but the problem is actually really straightforward as long as you don't shade anything till you're absolutely sure.
Yeah..

And no, you're actually supposed to solve the problem by shading in the stuff.
Title: Re: MATH
Post by: Reier on March 16, 2013, 06:44:26 PM: haha you guys totally missed the point I was talking about the guy's pathetic scribbling.

But yeah it's college alg and most of it is review but I stink at math anyway.