1. Compute a Cartesian equation for the plane through the points (1, 2,3), (2, 5, 7) and (−1, 1, 3).

2. Adapt the method used in (i), to compute a Cartesian equation for the plane through (−1,−3, 1) and parallel to the plane through (2,−2, 3), (4, 1,−1) and (1, 1,−1).

can some 1 help me with these two question. ASAP!!