Find parametric equations for the line. (Use the parameter t.) the line through the origin and the point (6, 5, −1) (x(t), y(t), z(t)) = ( ) Find the symmetric equations. x + 6 = y + 5 = z − 1 x/6 = y/5 = z x/6 = y/5 = −z x − 6 = y − 5 = z + 1 x/5 = y/6 = −z