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anonymous

  • 5 years ago

find the length of the segment from (-3,2) to (5,-1)

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  1. anonymous
    • 5 years ago
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    the answer is \[\sqrt{73}\], i just have no idea on how to get there

  2. anonymous
    • 5 years ago
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    The length L is given by: \[L=\sqrt{(5-(-3))^2+(-1-2)^2}=\sqrt{8^2+(-3)^2}=\sqrt{64+9}=\sqrt{73}\]

  3. anonymous
    • 5 years ago
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    So, you take the square of the difference of the x's coordinates , add it to the square of the difference of the y's coordinates. And then, square the whole number. You have to be careful with signs. Does that make sense?

  4. anonymous
    • 5 years ago
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    it does, thank you. is that a specific formula that you're using though?

  5. anonymous
    • 5 years ago
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    nevermind I found it, thanks!

  6. anonymous
    • 5 years ago
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    Yeah. You're welcome, and thanks for the medal.

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