Consider the planes 1x+5y+5z=1 and 1x+5z=0
Answer the following:
A) Find the unique point P on the y-axis which is on both planes.
B) Find the unit vector u with positive first coordinate that is parallel to both planes.
C) Use parts (A) and (B) to find a vector equation for the line of intersection of the two planes, r(t) =?