solving and graphing inequalities on the number line notes

Thearrowstillpointstotheright 10 9 7 8 6 4 5 3 2 1 0

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Unformatted text preview: 1 2 3 4 5 6 8 7 10 9 To show this, we place an OPEN CIRCLE on the number ­1 on the number line. The arrow still points to the right. ­10 ­9 ­7 ­8 ­6 ­4 ­5 ­3 ­2 ­1 0 1 2 3 4 5 6 7 8 9 10 (­1,∞) In interval notation, we write this as Graph the inequality x ≤ 2 Is the number 2 included in the solution set? YES ­10 ­8 ­9 ­6 ­7 ­5 ­3 ­4 ­2 ­1 0 1 2 3 4 5 6 7 8 To show this, we place a SOLID CIRCLE on the number 2 on the number line. 10 9 Now, where on the number line, are all of the numbers which are LESS THAN 2? To the left of the 2. ­10 0 ­1 ­2 ­3 ­4 ­5 ­6 ­7 ­8 ­9 1 2 3 4 5 6 8 7 10 9 To show...
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