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Jun 15th, 2005, 09:19 PM
#1
Thread Starter
Addicted Member
algebra..
bleh, didn't study the study guide, i don't have an algebra book anymore, and i don't have the study anymore either, so i'm stuck..
4x+ky=8
What's k?
I have the points
(2,0) and (5,2)
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Jun 15th, 2005, 09:31 PM
#2
Thread Starter
Addicted Member
Re: algebra..
Also how does y=kx work? (forgot)
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Jun 16th, 2005, 02:39 AM
#3
Re: algebra..
 Originally Posted by ICESTORM
bleh, didn't study the study guide, i don't have an algebra book anymore, and i don't have the study anymore either, so i'm stuck..
4x+ky=8
What's k?
I have the points
(2,0) and (5,2)
For (2,0) you have 4*2+ k*0 = 8 which is true yet doesn't help you.
But for (5,2) you substitute and get 4*5 + k*2 = 8 or:
20 +2*k = 8
2*k = 8 - 20 = -12
k = -12/2 = -6
Lottery is a tax on people who are bad at maths
If only mosquitoes sucked fat instead of blood...
To do is to be (Descartes). To be is to do (Sartre). To be do be do (Sinatra)
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Jun 16th, 2005, 02:41 AM
#4
Re: algebra..
Originally Posted by ICESTORM
Also how does y=kx work? (forgot)
It's a straight line with slope = k and going through the origin.
Lottery is a tax on people who are bad at maths
If only mosquitoes sucked fat instead of blood...
To do is to be (Descartes). To be is to do (Sartre). To be do be do (Sinatra)
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