Andrea, a cyclist, uses a graph to track her speed and distance. the graph below shows andreas cycling data for a one hour bike ride At one point, Andrea took a break from biking. When was the break, and how long did the break last?
O At 10 minutes, she took a 10-minute break.
O At 20 minutes, she took a 10-minute break.
O At 20 minutes, she took a 15-minute break.
O At 10 minutes, she took a 15-minute break.