anonymous
  • anonymous
How many solutions exist for the system y = 2x + 5 and y = -0.2x - 4?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
1
anonymous
  • anonymous
why dont you teach her how to get the answers herself?
anonymous
  • anonymous
almost seems like you are doing her homework for her.

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anonymous
  • anonymous
@shortie, because these equations are straight lines, are not a multiple of each other and have different gradients, there can only be one solution. If there were multiples they are the same line and have infinite solutions. If they had the same gradient they would be parallel lines and have no solutions.
anonymous
  • anonymous
Straight lines ---- Gradient-Intercept Form: y=mx+c where m is gradient, c is y-intercept Standard Form: ay+bx+c=0 where a and b are constants
anonymous
  • anonymous
Thanks Zed, just hate when people type an answer in a study group and not explain themselves. People should come here to learn, not have someone do their homework for them :)

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