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**Unformatted text preview: **2 : Express each set of numbers in set notation . a) n ≤ 40 b) domain: the set of real numbers c) range: the set of integers d) 3 x + 4 ≠ 1 2 e) z < 2 or z ≥ 5 f) z < 2 and z ≥ 5 g) z > 2 and z ≤ 5 Interval Notation -A notation for representing an interval as a pair of numbers . The numbers are the endpoints of the interval . *Parentheses and/or brackets are used to show whether the endpoints are excluded or included . Parentheses , ( ) , indicate a quantity is_________________________ . Brackets , [ ] , indicate a quantity is____________________________ . When using infinity or negative infinity always use_____________________________ . Examples of interval notation: 1,3 ( ) − 1 2 ,0 ⎡ ⎣ ⎢ ⎤ ⎦ ⎥ − 4,7 ( ⎤ ⎦ 5,6 ⎡ ⎣ ) 1, ∞ ( ) −∞ ,0 ( ⎤ ⎦ ex 3 : Express each set of numbers in interval notation . a) b) c) d) e) 2 < x ≤ 6 f) x > 30 g) y ≤ 40 h) the set of real numbers i) the set of whole numbers j) no greater than -25 k) z ≤ 6 or z > 17 l) z ≤ 6 and z > 17 m) n = 3 n) n ≠ 3...

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- Fall '19