Consider point P and vector v. Let L be the line passing through point P with direction v. P(1, −8, 9), v = 1, 8, 9 (a) Find parametric equations of line L. (Enter your answers as a comma-separated list of equations. Use t as the independent variable.) Correct: Your answer is correct. (b) Find symmetric equations of line L. x + 1 1 = y + 8 8 = z − 9 9 x − 1 1 = y + 8 8 = z − 9 9 x + 1 1 = y + 8 8 = z + 9 9 x − 1 1 = y − 8 8 = z + 9 9 x − 1 1 = y − 8 8 = z − 9 9 Correct: Your answer is correct. (c) Find the intersection of the line with the xy-plane. (If an answer does not exist, enter DNE.)