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julie001

  • 3 years ago

How many units apart are the points (4, -3) and (-4, 3)?

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  1. waterineyes
    • 3 years ago
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    Use: \[\large Distance = \sqrt{(x_2 - x_1)^2+ (y_2 - y_1)^2}\] \[\large x_2 = -4, x_1 = 4, y_2 = 3, y_1 = -3\] Plug in the values and find the distance..

  2. julie001
    • 3 years ago
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    0?

  3. waterineyes
    • 3 years ago
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    You are not taking care of negative signs.. \[Distance = \sqrt{(-4-4)^2 + (3 - (-3))^2}\]

  4. waterineyes
    • 3 years ago
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    -4 -4 = -8 and: 3 - (-3) = 3 + 3 = 6

  5. julie001
    • 3 years ago
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    so 2 ?

  6. waterineyes
    • 3 years ago
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    How??

  7. waterineyes
    • 3 years ago
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    I think I have put square above the brackets in the formula. You have to square them first and then add them..

  8. julie001
    • 3 years ago
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    i add them together?

  9. waterineyes
    • 3 years ago
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    Before adding please square them that is what Formula is saying..

  10. julie001
    • 3 years ago
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    1 got 100

  11. waterineyes
    • 3 years ago
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    Yes right.. Now take the square root of 100 ??

  12. julie001
    • 3 years ago
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    50

  13. waterineyes
    • 3 years ago
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    \(\sqrt{100} = 50 ??\)

  14. waterineyes
    • 3 years ago
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    Do you know what is square root ??

  15. julie001
    • 3 years ago
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    im rite?

  16. julie001
    • 3 years ago
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    10

  17. waterineyes
    • 3 years ago
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    Yes now you are right.. Well Done . That is the distance between them..

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