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Name______________________________________ Algebra 1A Period______ Functions (day 1): Definition of Functions and Evaluating Functions A FUNCTION is a relation for which every ________________ has only one _____________. The graph of a FUNCTION passes the VERITCAL LINE TEST. That is, a vertical line drawn over the graph will only intersect the curve at ONE point. Determine which of the following graphs are functions. 1) 2) 3) 4) 5) 6) Identify the domain and the range of each of the functions. 7) D:_______________ R:_______________ 8) D:________________ R:________________ Identify the domain and the range of each of the functions. 9) D:_______________ R:_______________ Evaluate Functions. 11) Given f ( x) 2 x 3 , evaluate f (2) and f (0). 12) Given g ( x) x 2 3x , evaluate g (0) and g(4). 13) Given h( x) 1 x 5 , evaluate h(10) and h(0). 2 14) Given k ( x) x 4 1 , evaluate k (3) and k (6). 10) D:________________ R:________________