Distance between (0,4,-2) and (-1,4,-2)?

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marystevensbUS · Accepted Answer

The distance between             (              x        1            ,              y        1            ,              z        1            )        =          (      0      ,      4      ,      -      2      )       and             (              x        2            ,              y        2            ,              z        2            )        =          (      -      1      ,      4      ,      -      2      )       is given by the distance formula:      d    =                                        (                          x              2                        -                          x              1                        )                    2                +                              (                          y              2                        -                          y              1                        )                    2                +                              (                          z              2                        -                          z              1                        )                    2                                                              (            -            1            -            0            )                    2                +                              (            4            -            4            )                    2                +                              (            -            2            -                          (              -              2              )                        )                    2                      )        =                  1        +        0        +        0                  =                  1              =    1  Alternatively, simply notice that the y and z coordinates of the two points is identical, so the points only differ in the x coordinate and the distance between the points is just the absolute change in the x coordinate, namely 1.

Distance between (0,4,-2) and (-1,4,-2)?

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