Match the parametric equations with the verbal descriptions of the surfaces by putting the letter of the verbal descriptio to the left of the letter of the parametric equation. 1. r (u, v) = u cos vi + u sin vj + u²k 2. r (u, v) = ui + cos vj + sin vk 3. r (u, v) = ui + vj + (2u − 3v) k 4. r (u, v) = ui + u cos vj + u sin uk A. plane B. circular paraboloid C. cone D. circular cylinder

Find a set of parametric equations of the line with the given characteristics. (Use t for the parameter. Enter your answers as a comma-separated list of equations.) The line passes through the point (-6, 8, 7) and is perpendicular to the plane given by -x + 6y + z = 8.

4. 225

Q5) Find the angle between the plane x+y-z=3 and the plane that perpendicular to the line has the following parametric equations: x=1-3t, y=a+2t, z=4t