Determine whether the following curve uses arc length as a parameter. If not, find a description that uses arc length as a parameter. r(t) = (4t^2,8t^2, root 89t^2), for 1 leq t leq 4 r(t) does not use arc length as a parameter. A description of the curve that uses arc length as a parameter is r(s) = (Type exact answers, using radicals as needed.