To determine which graph represents a function, you can use the "vertical line test." A graph represents a function if no vertical line intersects the graph at more than one point.
If you have access to the graphs, you can visually assess each one using this method. However, since I can't see the graphs, here are some tips for what to look for:
- Graph A: Check if a vertical line can ride over more than one point on the graph.
- Graph B: Again, apply the vertical line test.
- Graph C: Look for any places where a vertical line would touch the graph more than once.
- Graph D: Analyze the intersections with a potential vertical line.
Whichever graph passes the test without any vertical lines intersecting more than once is the graph that represents a function. If you can provide descriptions of the graphs, I can help you figure it out!