Question 135252: Can someone help me please?
Express the interval in set-builder notation and graph the interval on a number line.
[-∞,5/3]
If you can not graph that is ok. Thanks
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! Express the interval in set-builder notation and graph the interval on a number line. [-∞,5/3]
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Comment: You never have a bracket ([ or ]) where inf or -inf are involved
in the interval. The interval is always open to -inf or +inf.
[-inf, 5/3]
This should be (-inf,5/3] which is set-builder notation is {x|x <= (5/3)}
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The graph consists of a solid circle at 5/3 and an arrow extending to
the left from 5/3.
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Cheers,
Stan H.
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