SOLUTION: How do you solve an system by graphing. I see the problem x+y=-5 and-2x+y=1 now I need to figure out how to graph the problem so I can come up with the solution. Thank you!

Algebra ->  Algebra  -> Graphs -> SOLUTION: How do you solve an system by graphing. I see the problem x+y=-5 and-2x+y=1 now I need to figure out how to graph the problem so I can come up with the solution. Thank you!      Log On

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Question 37860This question is from textbook
: How do you solve an system by graphing. I see the problem x+y=-5 and-2x+y=1 now I need to figure out how to graph the problem so I can come up with the solution. Thank you!This question is from textbook

Answer by Alwayscheerful(414) About Me  (Show Source):
You can put this solution on YOUR website!
Okay, the easiest way to graph linear lines is to put them in slope-intercept form, which is y=mx%2Bb
m represents the slope, rise%2Frun
b represents the y-intercept, when x=0
x%2By=-5
highlight%28y=-x-5%29

-2x%2By=1
highlight%28y=2x%2B1%29

Now, you have two lines, draw them into your graph.
graph%28400%2C400%2C-10%2C10%2C-10%2C10%2C-x-5%2C2x%2B1%29
The answer to your system of equations is where the two lines meet.
Answer: (-2,-3)
Hope this helps!