Problem
5. Which of the following is true about the graph shown below? A. The graph is not a function because it does not start at \( (0,0) \). B. The graph is a function because it passes the vertical line test. C. It is not a function because it is not linear. D. It is a function because it has a constant rate of change.
Solution
Step 1 ：Use vertical line test to determine if the graph is a function.
