The graph below shows the velocity f(t) of a runner during a certain time interval:

graph of line segment going through ordered pairs 0, 6 and 6, 8. graph of another line segment going through the ordered pairs 6, 8 and 8, 0. label on the x axis is time in seconds and label on the y axis is velocity in meters per second

which of the following describes the intercepts on the graph?

the initial acceleration of the runner was 8 m/s2, and the runner stopped after 6 seconds.

the initial acceleration of the runner was 6 m/s2, and the runner stopped after 8 seconds.

the initial velocity of the runner was 8 m/s, and the runner stopped after 6 seconds.

the initial velocity of the runner was 6 m/s, and the runner stopped after 8 seconds.