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Math 131 Week in review 1 1. Classify each function as a power function, a polynomial, a rational function, or an exponential function and find f(a) for the given a. a ) f ( x ) 5 (3 ) a2 c) g ( x) 6 3 x a 8 x b) f ( x) 4 x d ) h( x) e ) K ( x ) 18 x 24 x 32 3 5 a2 3x 5 x 9x 4 2 a 1 a 2 2. What are the domain and range of a function? Find the domain and range of each function. a) f ( x) x2 d) g ( x) x x 3x 4 2 b) f ( x) x 1 2 c) f ( x) x 1 2