emilymontalvo3044 emilymontalvo3044 16-09-2018 Mathematics contestada Determine whether the lines l1 and l2 given by the vector equations are parallel, perpendicular, or neither. L1: r(t) = (-4 + 4t)i + (5 + t)j l2: r(s) = (2 + 2s)i + (2 - 8s)j
