Question

On a dt graph if there is a curve from 1 decreasing to 1.2 in an interval does is the velocity and acceleration + or 9? And is it slowing down or speeding up or neither?

Answer 1

I don't understand how from 1 to 1.2 is a decrease.

Answer 2

1-1.2 is the time interval and at 1 the point is at 150 and 1.2 the point is at 50.