l1 passes through the point with coordinates (3, 4, 5) in the direction of 2 1 l2 passes through the points with coordinates (8, 0, 1) and (8,0, -1) Write down the equations of l1 and l2 in parametric as well as Cartesian forms.

Find sets of parametric equations and symmetric equations of the line that passes through the given point and is parallel to the given vector or line. (For each line, write the direction numbers as integers.) Point Parallel to (-8, 0, 3) v = 4i + 9j - 6k (a) parametric equations (Enter your answers as a comma-separated list.) (b) symmetric equations X-8 O 20 4 02/2=y= 2²/1/2 x + 8 4 O 4x = =y=Z y 3 - z 9 == = 6z

Find parametric equations for the line segment joining the first point to the second point. (0,0,0) and (1,7,5) The parametric equations are x= y = for