Page 134 - Mathematics Coursebook
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13.3 Other straight lines



               )     Exercise 13.3

                                                                                                     y
               1  a  Copy and complete this table of values for y = x + 4.                          9
                                                                                                    8
                        x   −5    −3    0     2    4                                                7
                                                                                                    6
                        y          1          6
                                                                                                    5
                                                                                                    4
                  b  Copy these axes. Use your table to draw the graph of y = x + 4.                3
                                                                                                    2
                                                                                                    1
                                                                                                     0           x
                                                                                         –5  –4  –3  –2  –1 –1  1  2  3  4
                                                                                                    –2
                                                                                                    –3


               2  a  Copy and complete this table of values for y = 2x + 5.                            y
                                                                                                      11
                        x   −4    −2    0     2    3                                                  10
                        y          1               11                                                  9
                                                                                                       8
                                                                                                       7
                  b  Copy these axes. Use your table to draw the graph of y = 2x + 5.                  6
                                                                                                       5
                                                                                                       4
                                                                                                       3
                                                                                                       2
                                                                                                       1
                                                                                                        0        x
                                                                                              – 4  – 3  – 2  – 1 – 1  1  2  3
                                                                                                      – 2
                                                                                                      – 3
                                                                                                      – 4
               3  a  Complete this table of values for y = x − 3.
                        x   −2    −1    2     4    6
                        y   −5

                  b  Use your table to draw the graph of y = x − 3.  When you draw the coordinate grid, look carefully
                  c  Where does the graph cross the x-axis?         at the table of values so that you will know how to
               4  a  Complete this table of values for y = 5 − x.   label the axes.


                        x   −3    −1    2     5    6
                        y          6          0
                  b  Use your table to draw the graph of y = 5 − x.
                  c  Where does the graph cross the x-axis?
               5  a  Complete this table of values for y = 2 − x.

                        x   −4    −2    0     2    3     5
                        y          4               −1
                  b  Draw the graph of y = 2 − x.

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