The figure shows a velocity-time graph of a particle moving along a straight line. The vertical axis is v in m/s, ranging from −20 to 10, and the horizontal axis is t in seconds, marked at 0, 1, 2, and 3. The graph is a straight line starting at (0,10) and passing through (1,0) and (2,−10). Identify the correct statement.
(1) The particle starts from the origin.
(2) The particle crosses its initial position at t=2 s.
(3) The average speed of the particle in the interval 0≤t≤2 s is zero.
(4) All of the above.