Algebra 2 Companion Book, Volume 1

1.1.1 Sets of Numbers - Practice

1.  Order the list of numbers from least to greatest. 0.5, 5, 0, , and 3.1

2.  Classify each number by the subsets of the real numbers to which it belongs. − π 3, , 5, , and 0

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4.  Write the set of numbers using interval notation.

3.  Write the set of numbers using interval notation. − 6 < x ≤ 6

5.  Write the set in words. { x | x ≥ 0}

6.  Write the set “all values of x greater than or equal to − 1 and less than 2” in set builder notation.

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