1. [-/2 Points] DETAILS SCALC9 13.2.003. MY N Consider the following vector equation. r(1) = (31 - 4, 12 + 2) (a) Find r'(t). P' (t ) = (b) Sketch the plane curve together with the position vector r() and the tangent vector r'(t) for the given value of t = -1. X -10 -5 12 10 10 -2 10 S -6 -12 -10 X -8 -6 -2 -8 -S -10 2 -10 O -12 -10 -5 10