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anonymous

  • one year ago

Am I right on this?... To find the distance from two points in a graph I use the x1,y1 and x2,y2 formula?

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  1. jim_thompson5910
    • one year ago
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    I think you are referring to this formula? \[\Large d = \sqrt{\left(x_{2}-x_{1}\right)^2+\left(y_{2}-y_{1}\right)^2}\]

  2. anonymous
    • one year ago
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    but it looks like this...

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  3. jim_thompson5910
    • one year ago
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    ok you can use that formula above, or you can simply count out the spaces between the two points you can only count out the spaces if a) the points have the same x coordinate (one point is directly above the other) OR b)the points have the same y coordinate (the two points are on the same horizontal level)

  4. anonymous
    • one year ago
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    (-7,5) (-7,-3) the points do have the same x.

  5. jim_thompson5910
    • one year ago
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    so you can count out the spaces between the points if you don't want to count out the spaces, you can subtract the coodinates that aren't the same (in this case, the y coordinates) take the absolute value to ensure the result is positive |5 - (-3)| = ??

  6. anonymous
    • one year ago
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    (0,2) ??

  7. anonymous
    • one year ago
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    Am i right?

  8. jim_thompson5910
    • one year ago
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    no, the distance is going to be a single number

  9. anonymous
    • one year ago
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    so 2

  10. jim_thompson5910
    • one year ago
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    5 - (-3) is not equal to 2

  11. anonymous
    • one year ago
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    i mean 7

  12. jim_thompson5910
    • one year ago
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    the two negatives make a positive 5 - (-3) = 5+3 = 8

  13. jim_thompson5910
    • one year ago
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    count it out: there are 8 spaces between the two points

  14. anonymous
    • one year ago
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    i am horrible at math today.

  15. anonymous
    • one year ago
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    thanks

  16. jim_thompson5910
    • one year ago
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    you're welcome

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