Stitz-Zeager_College_Algebra_e-book

The domain is 0 0 16 function arithmetic 57 3

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Unformatted text preview: 3) = 2 9. (a) f (4) = 4 (g) (h) (i) 12 6 + a −2 a2 3a2 3a 2 + 2 −1 3a2 + 6ah + 3h2 (c) f (3) = 0 + 3 a + 3h − 2 (e) f (−3.001) = 1.999 (d) f (3.001) = 1.999 (f) f (2) = √ 5 (d) f (0) = 1 (b) f (−3) = 9 (e) f (−1) = 1 (c) f (1) = 0 (f) f (−0.999) ≈ 0.0447101778 54 Relations and Functions 10. (a) (−∞, ∞) (i) (−∞, ∞) (b) (−∞, ∞) (j) (−∞, 8) ∪ (8, ∞) (c) (−∞, −6) ∪ (−6, 6) ∪ (6, ∞) (k) [0, 8) ∪ (8, ∞) (d) (e) 1 3, ∞ 1 3, ∞ (l) (8, ∞) (m) (−∞, 8) ∪ (8, ∞) (f) (−∞, ∞) (g) (h) 1 3, 3 1 3, 6 (n) [7, 9] ∪ (3, ∞) 1 (o) −∞, − 2 ∪ − 1 , 0 ∪ 0, 1 ∪ 2 2 ∪ (6, ∞) (p) [0, 25) ∪ (25, ∞) 1 2, ∞ 11. The applied domain of P is [0, ∞). The range is some subset of the natural numbers because we cannot have fractional Sasquatch. This was a bit of a trick question and we’ll address the notion of mathematical modeling more thoroughly in later chapters. P (0) = 0 means that there were no Sasquatch in Portage County in 1803. P (205) ≈ 139.77 would mean there were...
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