Graph this equation: y= -x+1
Make a table for a x and y values
Assume values of x
    x         y
   -2         3
    0         1
    2        -1
When x = -2             when x = 0            When x = 2
    y = -x+1                 y = -x+1              y = -x+1
      = -(-2) + 1              = 0 + 1               = -2 + 1
      = 2 + 1                  = 1                   = -1
      = 3
Plot the points (-2, 3), (0, 1) and (2, -1)
Then Graph