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anonymous

  • one year ago

dont know what to do need help?!?!?!?!?! Select the equation of the line that passes through the point (3, 5) and is perpendicular to the line x = 4. y = 5 x = 5 y = 4 x = 3

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  1. anonymous
    • one year ago
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    @texaschic101 can u plz help

  2. anonymous
    • one year ago
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    ill give a medal and fan

  3. anonymous
    • one year ago
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    @e.mccormick ill give u medal if u can plz help me

  4. anonymous
    • one year ago
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    @OM14forever

  5. anonymous
    • one year ago
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    @Nnesha Can you help?

  6. e.mccormick
    • one year ago
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    OK, so, the line X=4 has what slope?

  7. anonymous
    • one year ago
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    -4?

  8. e.mccormick
    • one year ago
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    No. When a line is defined by x=k, then for any y, the x value is k: |dw:1440609795470:dw| This means it is straight up and down.

  9. e.mccormick
    • one year ago
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    So, if it is straight up and down, what is perpendicular to it and passes through (3,5)?

  10. anonymous
    • one year ago
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    so the slope is undefined and the one that goes through it would have no slope?

  11. e.mccormick
    • one year ago
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    Yes. And what has no slope, or is horozontal, and goes through (3,5)?

  12. anonymous
    • one year ago
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    idk? it would have to have an opposite slope right?

  13. e.mccormick
    • one year ago
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    Well, they sort of do.... it is basically infinite slope for up and down, and the negative invers of infinite slope basically goes to zero... but it would take advanced calculus to discuss how that could work. What I would use is the simpler version of perpendicular. They meet at right angles. So one is a vertiaacal line and one is a horozontal line. If you know that it is a horozontal line, then the only question is which horozontal line passes through the given point?

  14. anonymous
    • one year ago
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    |dw:1440610571680:dw|

  15. e.mccormick
    • one year ago
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    Exactly. So what is the equation of that line?

  16. anonymous
    • one year ago
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    wait i think i got it is the answer y=5

  17. e.mccormick
    • one year ago
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    YES! There it is.

  18. anonymous
    • one year ago
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    thnks ur a life saver : )

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