Posted by Lucy on Saturday, January 5, 2008 at 5:54pm.
for the first one it is everything to the left of -1/2 on your number line.
So put an open circle around -1/2 and an arrow to the left.
The open circle means everything to the left, but not the point itself.
For the second one, the point x = -3 is included so draw a solid, shaded in, circle around that point. Then your arrow points from there to the left.
Damon, since x ≤ -3 is already a subset of
x < -1/2, graphing x < -1/2 the way you just described it would suffice.
Oh, I did not realize they were connected by a logical or.
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