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:________________