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oddans32 - Odd-Numbered Answers to Exercise Set 3.2...

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Odd-Numbered Answers to Exercise Set 3.2: Functions and Graphs −6 −4 −2 2 4 6 8 10 −8 −6 −4 −2 2 4 x y −2 2 4 6 2 4 6 x y 2 4 6 8 2 4 6 x y −2 2 4 6 −4 −2 2 4 x y 2 4 6 8 10 12 14 2 4 6 8 x y 1. No, the graph does not represent a function. 3. Yes, the graph represents a function. 5. Yes, the graph represents a function. 7. No, the graph does not represent a function. 9. (a) [ ] 6 , 4 (b) [ ] 7 , 1 (c) 3 ) 2 ( = f (d) 4 , 4 = = x x 1 ) 0 ( = f 7 ) 4 ( = f 3 ) 6 ( = f 11. (a) ( ) [ ) 6 , 3 2 , (b) ( ] 5 , (c) 1 ) 2 ( = g (d) greater is ) 2 ( g 5 ) 0 ( = g undefined is ) 2 ( g 1 ) 3 ( = g undefined is ) 6 ( g 13. (a) Domain: ( ) , (b) Graph: 15. (a) Domain: [ ) 3 , 1 (b) Graph: 17. (a) Domain: ( ) , (b) Graph: 19. (a) Domain: [ ) , 3 (b) Graph: 21. (a) Domain: ( ) ,
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