Question 4 (1 point) Find the equation of the following lines in the required form: 1. through the points P(1, -3, 2) and Q(9, 2, 0) [vector equation] 2. with direction vector d = (5, 3, -4) and z-intercept 7 [symmetric equations] 3. perpendicular to (x, y, z) = (1, -2, 0) + r(1, -1, 1) through P(1, 3, 5) [parametric equations] 4. through T(2, -5) and perpendicular to the line 3x - 6y = 5 [scalar equation] Blank # 1