When is the object moving to the right parametric equations

That is, for a moving object whose parametric equations are known, the position function is a function that “takes in” a time t and “gives out” the position vector r(t) for the object's position at that time. and a(t) = v′(t) = r′′(t) = 〈x′′(t),y′′(t),z′′(t)〉 = x′′(t)i + y′′(t)j + z′′(t)k.

can you pls give me points