Question

Let L1 be the line passing through the points Q1=(−3, −1, −3) and Q2=(3, −3, −5) and let L2 be the line passing through the point P1=(−9, −2, −1) with direction vector →d=[−3, −2, 1]T. Determine whether L1 and L2 intersect. If so, find the point of intersection Q.