Page 41 - Mathematics_Form_3
P. 41

Functions


              8.  Which of the following  graphs       10.        y
                  represent a function?                           3
                  (a)                                             2
                                                                           y=(x-2) -5
                                                                                  2
                                y
                                                                  1
                                2
          FOR ONLINE READING ONLY
                                                             -1   0 0  1   2   3   4   5  x
                                1
                                                                -1
                  -3   -2  -1   0     1   2    3  x
                                                                -2
                              -1
                                                                -3
                              -2
                                                                -4

                  (b)                                           -5
                              y
                              2
                                                       11.            y
                              1
                                                                      2
                 -3  -2  -1   0    1   2   3   4  x                   1
                            -1
                                                             -2  -1   0 0   1   2   3    x
                            -2
                                                                     -1
                                                                            y=2x-3
               9.  The following figure represents the               -2

                   function “subtract 2 from x”. Copy                -3
                   and complete the pictorial diagram.
                                                                     -4
      Mathematics for Secondary Schools  – 4  4        12.    -1   y 2 1 0  1  2  3  4   x
                               x – 2

                      6
                                           2
                      4
                                           ........
                                           ........
                     – 6
                                           ........
                      11
                                           ........
                     17

               In questions 10 to 14 state whether each
                                                                 -2
               graph represents a function or not.               -1        y =1-|x-2|
                                                                 -3







                                                    34                 Student\s Book Form Three



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