The graph represents f(x) = .[x] + 3
What is f(−2.2)?
A. -2
B. 0
C. 1
D. 2

The correct answer is:
C. 1
Explanation:
Using the graph for f(-2.2), we go to -2.2 on the x-axis. This will lie between -2 and -3. We then go up to see where it we "meet" the graph. This happens at y=1, so that is our answer.