The function f(x) is shown on the graph.
15
12
94
-7-6-5-4-3-1.
+6+
-9
12+
-15+
fox)
B 4 5 6 7 x
What is f(0)?
O 12 only
O2 and 3 only
O-2, -1, 1, and 2 only
O-2,-1, 1, 2 and 12