SOLUTION: How do I solve a system of equations by graphing when when it's only y on one side of the equal sign and on the other is x and another number

Algebra ->  Systems-of-equations -> SOLUTION: How do I solve a system of equations by graphing when when it's only y on one side of the equal sign and on the other is x and another number      Log On


   

Question 898244: How do I solve a system of equations by graphing when when it's only y on one side of the equal sign and on the other is x and another number
Found 2 solutions by Fombitz, stanbon:
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Graph all of the lines and look for the point(s) of intersection.
Example:
y=x%2B2
.
.
graph%28300%2C300%2C-5%2C5%2C-5%2C5%2Cx%2B2%29
.
.
y=2x
.
.
graph%28300%2C300%2C-5%2C5%2C-5%2C5%2Cx%2B2%2C2x%29
.
.
They intersect at (2,4).
Verify with both equations.
4=2%2B2
4=4
True.
4=2%282%29
4=4
.
.
.
Solution : (2,4)

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
How do I solve a system of equations by graphing when when it's only y on one side of the equal sign and on the other is x and another number
------
Example ?
y = x + 3
---
You need 2 points::
If x = 0, y = 3
If x = 2, y = 5
-------------------
Plot (0,3) and (2,5) and draw a line thru them.
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Cheers,
Stan H.