How to find the value of f ( 1 2 ) , if f ( x ) = 3 x - 4 ?

Question

How to find the value of             f              (                  1          2                )            , if             f              (        x        )              =    3    x    -    4  ?

Schladazvx · Accepted Answer

Explanation: Substitute                               1          2                     for each occurrence of                     x             in the function             f              (        x        )             and determine the outcome:            f              (                              x                          )              =    3                  x              -    4   becomes:            f              (                                            1              2                                      )              =          (      3      ×                                    1            2                              )        -    4              f              (                                            1              2                                      )              =          3      2        -    4              f              (                                            1              2                                      )              =          3      2        -          (              2        2            ×      4      )                  f              (                                            1              2                                      )              =          3      2        -          8      2                  f              (                                            1              2                                      )              =                  3        -        8            2                  f              (                                            1              2                                      )              =    -          5      2

tolosanasdpr · Accepted Answer

Given solution Sub       x    =          1      2       into the function,             f              (                  1          2                )              =    3          (              1        2            )        -    4              f              (                  1          2                )              =          3      2        -    4              f              (                  1          2                )              =    -          5      2       or       -    2.5

How to find the value of f ( 1 2 ) , if f (...

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