Page 2 - intro to functions book
P. 2

This relation is a function because none of the
   S'        nput values (x-values) has more than one
          QiA(L. different output (y-value).
              —
             X       0       i       2       3       4
             y               3       6       9      12
          This relation is NOT a function because at least-
         one of the input values (x-values] has more than
                   mevdifferent ou>f5&t (y-value). ..

             X      -3       2      -3 |     5       8
             y . \ 11        5      -1       2      -2











          - ^          rOfr‘3 Or? O, '>v o %
     ; .   * "A.    : O ’ * '
                A A- -             5 >A:§
                                   AlSiSTlii
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