What is particle's position at t=1.0s and 3.0s?What is particle's velocity at t=1.0s and 3.0s?What is particle's acceleration at t=1.0s?

The velocity-versus-time graph is shown for a particle moving along the z-axis Its initial position is an - 3.0 m at to - 0 s. (Figure Vx (m/s) 2- 3 1 (s) 4