Remember that
this rectangular coordinate grid is just made up of a bunch of
( x , y )
points.
All the points ON
the line work in this part:
Now, we just need
to find all the points that work in this part:
Here's how we
find these points:
We just pick a
point OFF the line and test it!
Here's the deal:
If
( 0 , 0 )
works, then ALL the points
on the same side of the line will
work.
Don't believe me?
Let's try a couple more:
So, our answer is
this:
 |
All the
( x , y )
points on the line and in the
shaded region work in
 |
?
