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anonymous

  • 4 years ago

Give an equestion for the line that contains ( 3,2 ) and (5,-2 )

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  1. Mertsj
    • 4 years ago
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    Slope = (-2-2)/(3-5)=-4/-2=2 So now we know the slope is 2 plug one of the points and the slope into point-slope form.

  2. Mertsj
    • 4 years ago
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    Can you do that?

  3. anonymous
    • 4 years ago
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    I Dont Get It

  4. anonymous
    • 4 years ago
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    find slope m = y2 - y1 / x2 - x1 m = -2 - 2 / 5 - 3 m =-4 / 2 m = -2 find b y = mx + b pick any coordinate 2 = -2 (3) + b 2 = -6 + b 8 = b your equation is y = -2x + 8

  5. Mertsj
    • 4 years ago
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    Here is point-slope form: y-y1=m(x-x1)

  6. Mertsj
    • 4 years ago
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    Ok. Dada will help you, I see.

  7. anonymous
    • 4 years ago
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    lol i showed all the steps so you can learn from it I believe Mertsj is right you should learn how to do it yourself

  8. anonymous
    • 4 years ago
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    How would you grap that

  9. amistre64
    • 4 years ago
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    most basic graphing is to fill in some xs to find the ys to plot

  10. amistre64
    • 4 years ago
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    the equation is a rule for the graph; all it has to be be is followed

  11. amistre64
    • 4 years ago
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    another simpler way is to plot the 2 points given and draw a line between them

  12. anonymous
    • 4 years ago
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    but how would you do that

  13. amistre64
    • 4 years ago
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    the equation itself just defines the line;

  14. amistre64
    • 4 years ago
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    they gave you 2 points right? you know how to plot a point?

  15. anonymous
    • 4 years ago
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    |dw:1327282532053:dw|

  16. anonymous
    • 4 years ago
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    no i dont know how to plot a point

  17. amistre64
    • 4 years ago
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    good, the first number is how far you move on the x; the second is how far you go on the y

  18. anonymous
    • 4 years ago
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    so can you draw for me how to do this please

  19. amistre64
    • 4 years ago
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    |dw:1327282661108:dw|

  20. amistre64
    • 4 years ago
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    can you plot the other one with those instructions?

  21. amistre64
    • 4 years ago
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    (5,-2) over 5 and down 2

  22. amistre64
    • 4 years ago
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    |dw:1327282745683:dw|

  23. amistre64
    • 4 years ago
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    does that make sense?

  24. amistre64
    • 4 years ago
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    |dw:1327282794427:dw| then connect the dots

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