11. The Real Numbers Irrational numbers Rational numbers Integers Whole Numbers Natural Numbers
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16. Plotting Points Example : On the real number line, label the points with the coordinates 0, 1.75, – 2.5, 4. Real numbers are named in order on the number line. – 2.5 < 0 0 > 4 2 – 2 0 1 3 4 5 – 1 – 3 – 4 – 5 “ less than” “ greater than”
17. Ordering Numbers Example : Replace the ? With < , > or =. (a) 3 ? –2 Since 3 lies to the right of –2, we know that 3 > –2. (b) 3 ? 5.6 Since 3 lies to the left of 5.6, we know that 3 < 5.6. > < (c) – 2 ? Since – 2 is another way of writing we know that =