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express the following number line in Interval notation below. the graph is the attachment and the first graph is the whole other question. Please explain both thanks.

express the following number line in Interval notation below the graph is the attachment and the first graph is the whole other question Please explain both tha class=
express the following number line in Interval notation below the graph is the attachment and the first graph is the whole other question Please explain both tha class=

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AL2006
Unless I misunderstand these things, the number line
looks like it's simply indicating " n < 4 " .
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Regarding the graph:

The dashed line is the graph of the equation         y = 1/5 x - 2 .

The drawing is saying that the solution set (the green region)
is everything UNDER this line, but not the line itself. 

So the green region is          y < 1/5 x - 2 .      

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