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anonymous

  • 5 years ago

Give the slope of each line & then determine whether the 2 lines are parallel, perpendicular or neither. 3x+4y=8 & 12x+16y=0

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  1. anonymous
    • 5 years ago
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    put them both in the form y=mx+b, if m is equal for both, they are parallel. If you can flip m of one equation and change it's sign and it equals the m of the other, they are perpendicular. If neither of these conditions exists, it's neither parallel or perpendicular

  2. anonymous
    • 5 years ago
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    I am terrible at these that is why I am asking for help. I just seem to not be able to work these very good.

  3. anonymous
    • 5 years ago
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    this locked up on me again.

  4. anonymous
    • 5 years ago
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    For perpendicular check, you multiply both m's, if they equal -1 they are perpendicular, do u know how to put them into y=mx+b format?

  5. anonymous
    • 5 years ago
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    not really

  6. anonymous
    • 5 years ago
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    move y to one side and isolate it....3x+4y=8... 4y=8-3x...y=(8-3x)/4...y=2-3/4x...y=-3/4x+2....the number atached to x is your m

  7. anonymous
    • 5 years ago
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    ok still lost

  8. anonymous
    • 5 years ago
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    is that a fraction or is it -3 divided by 4x?

  9. anonymous
    • 5 years ago
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    it's (-3/4)x

  10. anonymous
    • 5 years ago
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    ok so (-3/4) = -.75 right? times x

  11. anonymous
    • 5 years ago
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    just need and answer

  12. anonymous
    • 5 years ago
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    well yeah, but you have to compare (-3/4) to the m of your other equation to see if they are parallel or perpendicular

  13. anonymous
    • 5 years ago
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    I just come here to get quick answers since I have a bunch of these to do and I suck at this.

  14. anonymous
    • 5 years ago
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    they are parallel dude, they both have a slope of -3/4

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