Question 682499
Step 1: Isolate the y variable
x - 2y = 1
x - 1 = 2y
{{{y = (1/2)x-(1/2)}}}
...
comparing to y=mx+b, b is the y intercept
...
In this case {{{-1/2}}} is the y intercept
Plot (0, {{{-1/2}}})
...
For x intercept, set y = 0 and solve
0 = {{{(1/2)x-(1/2)}}}
{{{(1/2) = (1/2)x}}}
1 = x
Plot (1,0)
Draw a line through the intercepts.
...
{{{graph(300,200,-4,4,-4,4,(1/2)x-(1/2))}}}
.....................
Have more questions? 
Email: HomeworkHelpers@readingboosters.com
Delighted to help.
-Reading Boosters
Website: www.MyHomeworkAnswers.com 
Wanting for others what we want for ourselves.