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Zombii

  • 2 years ago

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)

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

  2. Zombii
    • 2 years ago
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    No not exactly..

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

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

  5. savvers
    • 2 years ago
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    and that formula is used to find out the slope

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

  7. savvers
    • 2 years ago
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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

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

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

  10. savvers
    • 2 years ago
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    let me check

  11. savvers
    • 2 years ago
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    umm no its going to be -3/8

  12. Zombii
    • 2 years ago
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    How did you solve that?

  13. savvers
    • 2 years ago
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    using y2-y1/x2-x1

  14. Zombii
    • 2 years ago
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    Ok, I got it now.

  15. Zombii
    • 2 years ago
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    So now what?

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

  17. savvers
    • 2 years ago
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    plot both points and run a line through them

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

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

  20. savvers
    • 2 years ago
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    use graph paper and see what you get :)

  21. Zombii
    • 2 years ago
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    How do I graph it?

  22. savvers
    • 2 years ago
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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

  23. Zombii
    • 2 years ago
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    Ok

  24. savvers
    • 2 years ago
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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

  25. Zombii
    • 2 years ago
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    Got it

  26. savvers
    • 2 years ago
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    like this

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  27. Zombii
    • 2 years ago
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    Ok I drew one.

  28. savvers
    • 2 years ago
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    now did you plot both points on the graph?

  29. Zombii
    • 2 years ago
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    Yes

  30. savvers
    • 2 years ago
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    now go through the line until you see the line go through the "y" line

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

  32. Zombii
    • 2 years ago
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    It passes through the Y line at 3.

  33. savvers
    • 2 years ago
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    yep

  34. savvers
    • 2 years ago
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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)

  35. savvers
    • 2 years ago
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    now standard form is left

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

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