Question 192824
<pre>
y>=(1/4)x-1
:
the boundry line is a solid line at y=(1/4)x-1.  
:
 If you plug in the coordinate (0,0) as a test for what needs to be shaded we get
:
0>=1/4(0)-1......which is a true statement therefore everything above the boundry line is shaded

{{{graph(300,300,-10,10,-10,10,(1/4)x-1)}}}.