To determine which of the choices is correct about the information shown on the graph, I would need to see the actual graph to analyze the speed changes over time. Since I cannot view images or graphs, I can only guide you on how to interpret the graph.
You should look for the following:
- If the speed decreases initially and then starts to increase, the first choice would be correct: "First the speed decreases, then it increases."
- If the speed begins to decrease at the 2-second mark specifically, then the second choice is correct: "The speed shown on this graph begins to decrease at the 2 second mark."
- If the speed initially increases and then decreases later on, then the third choice is correct: "First the speed increases, then it decreases."
By examining the graph's trend over the specified time intervals, you can select the correct statement. If you can provide a description of the graph's behavior regarding speed, I can help further in concluding the correct choice.