Assume we wish to make an animation that moves an object from the point $A=(-12,3)$ to the point $B=(-13,12)$. What sum $P+\vec v$ is involved in this animation? Answer: $($,$)~+~\langle$,$\rangle$ Compute $P+\frac12\vec v$ to find where the object would be half way along its path. Answer: $($,$)$ Where is it when it is $90\%$ of the way along? Answer: $($,$)$