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anonymous

  • 5 years ago

How do you write an equation in slope intercept form for a line that passes through a certain set of points? And how do you do it if they tell you the x intercept, but not the y intercept? Thanks!

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  1. anonymous
    • 5 years ago
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    slope =(y2-y1)/(x2-x1) slope intercept form = y=mx+b

  2. anonymous
    • 5 years ago
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    Ok, so you use the points in slope formula? But what if you're only given one set of points? Like if it said, slope -5, passes through (-3,-8) ? then how would you do the formula?

  3. anonymous
    • 5 years ago
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    use formula, \[y-y_{1}=m(x-_x{1})\]

  4. anonymous
    • 5 years ago
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    m=-5 y1=-8 x1=-3

  5. anonymous
    • 5 years ago
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    ok

  6. anonymous
    • 5 years ago
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    If I deserve medal then give me one

  7. anonymous
    • 5 years ago
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    u need help with equation?

  8. anonymous
    • 5 years ago
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    hold on one sec

  9. anonymous
    • 5 years ago
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    Thanks! ok how do I give you a medal haha?

  10. anonymous
    • 5 years ago
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    next my name click on good answer

  11. anonymous
    • 5 years ago
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    Oh wait, what if it's perpendicular?

  12. anonymous
    • 5 years ago
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    2 line intersect have angle 90 degree

  13. anonymous
    • 5 years ago
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    paralell never intersect

  14. anonymous
    • 5 years ago
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    Right, I know, so how would you put that in slope intercet equation?

  15. anonymous
    • 5 years ago
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    slope -5, passes through (-3,-8) ?

  16. anonymous
    • 5 years ago
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    No, if it says that it's perendicular to lik efor examle, y=3x-2

  17. anonymous
    • 5 years ago
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    let do this ffrist y-(-8)=-5(x-(-3)) y+8= -5(x+3) y= -5x-15-8 y= -5x -23

  18. anonymous
    • 5 years ago
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    Yes, I got that

  19. anonymous
    • 5 years ago
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    u want write anothe equation is perendicular to this line y=3x-2?

  20. anonymous
    • 5 years ago
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    yes, and passes through (6,-1)

  21. anonymous
    • 5 years ago
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    perendicular slope is flip and opposite side Example : slope = -1/3 than y-(-1)=-1/3(x-6) \[y+1=\frac{-1}{3}( X)+2\]\[y=\frac{11x}{3}+2-1 \]\[y=\frac{-1x}{3}+1\] \[y=\frac{1x}{3}+1 \]perendicular to line y=3x-2 u can check by : produc of 2 slope is -1 then they are perendicular

  22. anonymous
    • 5 years ago
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    Thanks!

  23. anonymous
    • 5 years ago
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    \[\frac{-1}{3}\times3=-1\] -1 yes they are perendicular

  24. anonymous
    • 5 years ago
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    good cluck your home work

  25. anonymous
    • 5 years ago
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    Thank you

  26. anonymous
    • 5 years ago
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    u forgot give me a medal

  27. anonymous
    • 5 years ago
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    How do I do that again?

  28. anonymous
    • 5 years ago
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    next my name click on good answer

  29. anonymous
    • 5 years ago
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    d u see?

  30. anonymous
    • 5 years ago
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    next may name right hand side

  31. anonymous
    • 5 years ago
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    It won't let me click on the medal symbolk though

  32. anonymous
    • 5 years ago
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    u see medal or good answer?

  33. anonymous
    • 5 years ago
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    click on give medal or good answer

  34. anonymous
    • 5 years ago
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    There is nothing that says that

  35. anonymous
    • 5 years ago
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    not thing next to my name? some one just give me

  36. anonymous
    • 5 years ago
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    never mind

  37. anonymous
    • 5 years ago
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    There is a medal symbol and it says 117, and then a shield and it says 10. I can't click on either of those. There is nothing else.

  38. anonymous
    • 5 years ago
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    next it says 10

  39. anonymous
    • 5 years ago
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    after it says 10

  40. anonymous
    • 5 years ago
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    this u see the box say good answe or give medal?

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