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Question 53911: show me a graph of x - y < 5
Answer by funmath(2933)   (Show Source):
You can put this solution on YOUR website! I can't really show you this graph, you'll have to use you're imagination.
Graph the line just like you would a regular line only use a dashed line because it doesn't actually equal.
x-y<5
-x+x-y<-x+5
-y<-x+5
You have to flip the inequality sign over whenever you multiply or divide by a negative number:
-1(-y)>-1(-x+5)
y>x-5
This is in slope intercept form: y=mx+b, m=slope, (0,b)=y-intercept.
Plot (0,-5)
From that point, use your slope 
In this case, there is nothing infront of the x, so m=1.
Think of that as m=1/1.
So from (0,-5) go up 1 and right 1 and plot another point at (1,-4).
Connect the two points with a dashed line.
When y< you shade below the line, when y> you shade above the line.
In your case shade above the line.
Imagine the graph below, with a dahsed line and the area above the line shaded:
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