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Lv 4
? asked in Science & MathematicsMathematics · 9 years ago

Using the distance formula, find the distance between (-1,3) and (-7,7)?

Please show all working out

3 Answers

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  • ?
    Lv 4
    9 years ago
    Favorite Answer

    sqrt( (-1 - (-7))² + (3-7)²)

    = sqrt (6² + 4²)

    = sqrt(52)

    = 2 * sqrt(13)

  • supty
    9 years ago

    the distance formula is, d = sqrt((x1 - x2)^2 - (y1-y2)^2)

    so, d = sqrt((-1+7)^2 + (3-7)^2) = sqrt(36+16) = sqrt(52)

  • ?
    9 years ago

    (-1,3) and (-7,7)?

    -3 and -49

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