jkjjoijjm1341 jkjjoijjm1341 19-09-2018 Mathematics contestada Determine whether the lines l1 and l2 given by the vector equations are parallel, perpendicular, or neither. L1: r(t) = (-4 + 3t)i + (5 + t)j l2: r(s) = (5 + 2s)i + (1 - 6s)j