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Unformatted text preview: those that make the denominator zero. So the domains of the functions above are: f(x) x 0 g(x) x 1 and h(x) x 2 and x -2 or using interval notation : f(x) ( ,0) (0, )- + U g(x) ( ,1) (1, )- + U and h(x) ( 29 , 2) ( 2,2 (2, )- --+ U U Note the graph of 2 1 ( ) f x x = . As x approaches , the graph approaches the x-axis from above (is always positive)! Now the graph of 2 1 ( ) ( 2) f x x =-would look like what ??? Similarly, Ex. 5 P. 275 asks to graph 2 1 ( ) 1 ( 2) f x x =-+ look like....
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