Question 176036
<pre>
a) 2y=x or y=x/2
:
*********************
    x      y
*********************
    0      2
    2      1
    4      2
    5      5/2
    6      3
   -4     -2
now plot those points and draw a line thru them

do the same thing for b)
:
for b remember all values of y will always be 4 and x can be any value. Horizontal line parallel to and 4 units above the x axis.