The position of a certain particle depends on time according to the following equation (click to see). Find the general formula for the displacement for the time interval t to t+delta(t)

Question

babyslapmafro · Answer

The position of a certain particle depends on time according to the following equation.
$$x(t)=t^2-5.2t+1.2$$

babyslapmafro · Answer

Do I plug values into this equation?
$$x _{f}-x _{i}=v _{0}t+.5at^2$$

anonymous · Answer

plug in $$t + \delta t $$
for t

babyslapmafro · Answer

everything else remains the same?

babyslapmafro · Answer

Ok my answer was 
$$\Delta x=v_0(t+\Delta t)+.5a(t+\Delta t)^2$$
and my web-homework said it is wrong

anonymous · Answer

since you said u got that answer then u should subtract  the displacement at time t from at t+(delta)t
since u were told to calculate d displacement