Does this graph represent a function? Why or why not?
• A. No, because it is not a straight line.
• B. No. because it fails the vertical line test.
C. Yes, because it passes the horizontal line test.
• D. Yes, because it passes the vertical line test.
The vertical line test test is done by drawing a vertical line anywhere on the graph. If the line goes through two points or more then it isn't a function.
