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anonymous

  • 4 years ago

How many solutions does this system of equations have? 5x-4y=11 4y=5x-9

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  1. anonymous
    • 4 years ago
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    use the substitution method

  2. anonymous
    • 4 years ago
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    or check the slopes to see if they're the same

  3. UnkleRhaukus
    • 4 years ago
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    first equation\[5x-4y=11\]\[4y=5x-11\]\[y=5/4x-11/4\] second equation \[4y=5x-9\]\[y=5/4x=9/4\] looking at the general forms of these equations we can see that they have the same slope and different intercepts, this means the lines are parallel and thus there is no solution

  4. UnkleRhaukus
    • 4 years ago
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    *\[y=5/4x-9/4\]

  5. anonymous
    • 4 years ago
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    oh okay. I think i understand this a little bit better now. Thanks so all! God bless!

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