Give a geometric description of the following system of equations 2x + 4y - Select Answer 1. - -1 + 5y Select Answer 2x + 4y Two planes that are the same Two parallel planes -31 - Two planes intersecting in a point Two planes intersecting in a line 2x + 4y -31 - 2. 3. 6z = 12 9z = 1 6z = 12 16 = 6z = -12 9z = - бу + 9z - бу + 18