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#1 2011-06-18 01:35:12
- adorable girl
- Guest
need answer for Systems of Linear Equations: Graphing
hey i need help graphing the following
1. y = (2/3)x - 1
y = -x + 4
2. x + y = 0
3x + y = -4
3. 4x + 3y = -15
y = x + 2
4. x + 2y = -4
4y = 3x + 12
5. y = 2x
x + y = 3
6. x = 3 - 3y
x + 3y = -6
7. y = -2x + 1
y = x - 5
8. y = (1/2)x - 3
y = (3/2)x - 1
#2 2011-06-18 01:36:47
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: need answer for Systems of Linear Equations: Graphing
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#3 2011-06-18 01:47:05
- Bob
- Administrator
- Registered: 2010-06-20
- Posts: 10,583
Re: need answer for Systems of Linear Equations: Graphing
hi adorable girl
2. x + y = 0
3x + y = -4
The function grapher is great. But you have to have 'y' as the subject of the equation, so in question 2 for example:
and
and for
3. 4x + 3y = -15
Hope that helps.
Bob
Last edited by Bob (2011-06-18 01:52:11)
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You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei
Sometimes I deliberately make mistakes, just to test you! …………….Bob 
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