(1 point) Consider the planes 4r + 5y+ 5 = 1 and 4r + 5e = 0. (A) Find the unique point P on the y-axis which is on both planes. ( (B) Find a unit vector u with positive first coordinate that is parallel to both planes. i+ j+ k (C) Use parts (A) and (B) to find a vector equation for the line of intersection of the two planes,r(t) = j %3D i+ k NOTE: Part (C) is counted as a single question. All three components must be filled in to receive credit There are many different correct answers to this question.