Page 2 - Functions
P. 2

Functions




               Quadratic graphs


              Question

                                          2
              Sketch the graph of    (  ) = 2   − 4   − 1





               Solution

                                          2
               Table of values for   (  ) = 2   − 4   − 1

                        x          -2          -1          0           1          2           3
                        f(x)       15          5           -1          -3         -1          5


               The graph
   1   2   3   4   5   6   7