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Zombii

Write an equation in point-slope form for the line that passes through one of the following pairs of points (you may choose the pair you want to work with). Then, use the same set of points to write the equation in standard form and again in slope-intercept form. (5, 1), (–3, 4)

  • one year ago
  • one year ago

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  1. karatechopper
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    Ok. Well lets start by asking you this, do you know how to find the slope between two points?

    • one year ago
  2. Zombii
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    No not exactly..

    • one year ago
  3. savvers
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    ok first off we need to use y2-y1/x2-x1 and its easy to figure out using it

    • one year ago
  4. Zombii
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    Ok. Thanks, I'll try to figure this out.

    • one year ago
  5. savvers
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    and that formula is used to find out the slope

    • one year ago
  6. laihei
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    This one will be a negative slope as well.

    • one year ago
  7. savvers
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    point slope form is y-y1=m(x-x1) but we have to figure out the slope intercept form first for this one

    • one year ago
  8. savvers
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    and then when you got both of these 2 then its easy to figure out standard form

    • one year ago
  9. Zombii
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    would the fraction be 2/5?

    • one year ago
  10. savvers
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    let me check

    • one year ago
  11. savvers
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    umm no its going to be -3/8

    • one year ago
  12. Zombii
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    How did you solve that?

    • one year ago
  13. savvers
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    using y2-y1/x2-x1

    • one year ago
  14. Zombii
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    Ok, I got it now.

    • one year ago
  15. Zombii
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    So now what?

    • one year ago
  16. savvers
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    now we have the slope we figure out slope intercept form and you have to use graph paper for that

    • one year ago
  17. savvers
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    plot both points and run a line through them

    • one year ago
  18. savvers
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    and slope-intercept form is y=mx+b where m is the slope and b is the y intercept

    • one year ago
  19. Zombii
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    Can you help me out with that please?(:

    • one year ago
  20. savvers
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    use graph paper and see what you get :)

    • one year ago
  21. Zombii
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    How do I graph it?

    • one year ago
  22. savvers
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    ok take a peice of graph paper and make a large "+" in it and number the lines with 1's or 2's

    • one year ago
  23. Zombii
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    Ok

    • one year ago
  24. savvers
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    but if number it with 1's you have to go like this 1,2,3,4,5 and so on and with 2's: 2,4,6,8 and so on

    • one year ago
  25. Zombii
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    Got it

    • one year ago
  26. savvers
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    like this

    • one year ago
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  27. Zombii
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    Ok I drew one.

    • one year ago
  28. savvers
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    now did you plot both points on the graph?

    • one year ago
  29. Zombii
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    Yes

    • one year ago
  30. savvers
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    now go through the line until you see the line go through the "y" line

    • one year ago
  31. savvers
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    x is the horizontal line on the "+" and y is vertical line of the "+"

    • one year ago
  32. Zombii
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    It passes through the Y line at 3.

    • one year ago
  33. savvers
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    yep

    • one year ago
  34. savvers
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    now you got your slope intercept form and point slope form: y=-3/8x+3 and y-1=-3/8(x-5)

    • one year ago
  35. savvers
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    now standard form is left

    • one year ago
  36. savvers
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    well i got to go i hope you can figure this out

    • one year ago
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