Algebra 3 - Test 3 - Section 2 Let X = {0, 2, 4, 6} and let Y = {0, 4, 16, 36}
Let f : X → Y
f : {(0, 0),(2, 0),(2, 4),(4, 4)(6, 16)}
1. Is f a function? If yes, state the domain and range of f. If no, explain why f is not a
function.

Let X = {5, 10, 15, 20} and Y = {−1, 0, 1}
Let g : X → Y
g : {(5, 1),(10, 0),(15, 0),(20, 1)}
2. Is g a function? If yes, state the domain and range of g. If no, explain why g is not a
function.

Let X = {−1, 0, 1, 2} and Y = {3, 4, 5, 6}
Let h : X → Y
h : {(−1, 4),(0, 5),(1, 3),(2, 3)}
3. What is the range of the function h?