# Algebra

Compare the graph of a compound inequality involving "and" with the graph of a compound inequality involving "or"

A graph using an inequality "and" means that, on a line, the two points they are between forms a segment, while and inequality involving "or" means that it forms a line going in two different directions

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1. No.
And allows two regions of a domain , such as 2<x<5 and 12<x<13 to be allowed values
Or allows only one or the other region to be allowed values, but not both.

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bobpursley
2. Plotting -5 ≤ x < 8, which means x ≥ -5 AND x < 8
https://www.wolframalpha.com/input/?i=plot+-5+%E2%89%A4+x+%3C+8

plotting x ≤ -5 OR x > 8
would have a closed little circle at the -5 with an arrow to the left, and an open little circle at the 8 with an arrow going to the right.

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Reiny

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