EDIT: Sorry I made a spelling error in the title: its supposed to be Planes 1. The problem statement, all variables and given/known data Recall that there are three coordinates planes in 3-space. A line in R3 is parallel to xy-plane, but not to any of the axes. Explain what this tells you about parametric and symmetric equations in R3. Support your answer using examples. 2. Relevant equations N/A 3. The attempt at a solution I know that if the line is parallel to the xy plane, it will have the direction vector: [x,y,0] To find the parametric equation, we need to pick a fixed point on the line (x1, y1, z1) Parametric equation are: (note: t is the scalar) x =x1+xt y =y1+yt z =z1 I am not sure what I need to explain here, any help is much appreciated Thanks!