Which riders form the center of the line?

Which riders form the center of the line?

• A. 1-1 and 4-4
• B. 2-2 and 3-3
• C. 1-2 and 2-3
• D. 3-1 and 4-2

Answer: (A)

Think of a line as having a start and an end. The center of the line is defined by the points that bound it—the endpoints. In this setup, the line stretches from the rider at 1-1 to the rider at 4-4. Those two riders sit at the very ends, so they establish the central path of the line. The other options place riders inside the line or pair riders that aren’t at the ends, so they don’t define the center. Therefore, the riders at 1-1 and 4-4 form the center.

Think of a line as having a start and an end. The center of the line is defined by the points that bound it—the endpoints. In this setup, the line stretches from the rider at 1-1 to the rider at 4-4. Those two riders sit at the very ends, so they establish the central path of the line. The other options place riders inside the line or pair riders that aren’t at the ends, so they don’t define the center. Therefore, the riders at 1-1 and 4-4 form the center.