y-intercept is the vertical-intercept.
   x-intercept is the horizontal-intercept.

   Set the input to zero to find the vertical-intercept. 
   Set the output to zero to find the horizontal-intercept. 

   Intercepts are always recorded as order-pairs.

   -----------------------------------------------------------

   a.  Given  f(x) = 5(x) + 2, record the x- and y-intercepts.

   b.  Given  g(x) = -2(x) + 1, record the x- and y-intercepts.

   c.  Given  h(x) = 0.25(x), record the x- and y-intercepts.

   Table A.
   --------------------------------------
    inputs:   -4  | -2  |  0  |  2  |  4
   --------------------------------------
   outputs:   -5  |  0  |  5  | 10  | 15

   d.  Record the x- and y-intercepts for table A.


   e.  Record the x- and y-intercepts for the following ordered-pairs.
       (-10, 0)   (-5,  2)   (0, 4)   (2, 6)   (4, 8)