anonymous
  • anonymous
Select the system of equations that corresponds to the given graph. My answer is -8x + 4y = -16 -4x + 2y = -8 Am I right? :)
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
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jim_thompson5910
  • jim_thompson5910
I recommend downloading geogebra to graph this
DebbieG
  • DebbieG
Do you notice something about those 2 equations? Something about how they compare to one another?

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More answers

anonymous
  • anonymous
They are parallel?
DebbieG
  • DebbieG
Well, you can certainly IF they are parllel. What about them, would make them parallel?
jim_thompson5910
  • jim_thompson5910
I used geogebra and got this graph
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anonymous
  • anonymous
They a right beside each other and they will never cross?
jim_thompson5910
  • jim_thompson5910
yes what I just posted has one line right on top of the other
DebbieG
  • DebbieG
Don't need any software for this. Just need to understand about the nature of the equations of line. I'm certain that the intent of the question is NOT to graph it in a software package. it's to understand the concept.
jim_thompson5910
  • jim_thompson5910
that's true, but it helps to have something to check
DebbieG
  • DebbieG
Ok, yes, parallel will never cross. But what about the EQUATIONS would make them parallel?
anonymous
  • anonymous
Thanks @jim_thompson5910 I'll download it
jim_thompson5910
  • jim_thompson5910
as DebbieG is saying, don't rely 100% on it it's just something there to check your work
anonymous
  • anonymous
Im not getting what your trying to show me @DebbieG
DebbieG
  • DebbieG
OK, if the line equations were in y=mx+b form, what tells you that the lines are parallel?
DebbieG
  • DebbieG
Let's take another approach. :) In a linear system of 2 equations, there are 3 possibilities: 1. two distinct lines that cross at 1 point - one solution 2. two distinct lines that never cross (parallel) - no solutions 3. two equations for the SAME LINE, e.g., only 1 line because the 2 equations are equivalent. Infinitely many solutions, because every point that satisfies ONE of the equations, also satisfies the other (well, yeah.... they are the SAME line)
DebbieG
  • DebbieG
Do you know what to look for in the system to tell which KIND of system you have? That's what this problem really wants to know, I think.

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