Computer Science 215
                               Quiz B      Name ______________________

1. Compute the vector sum of



   (1, 2, 4) + (2, -1, 3) =



2. Compute the dot product of



   (1, 2, 4) dot (2, -1, 3) =



3. What vector is obtained when (2, -2, 4) is multiplied by the
   scalar value 3?



   3 (2, -2, 4) =



4. Compute the length of the vector (1, -2, 3) (No calculators
   are needed -- you may leave the square root symbol in your answer).



   || (1, -2, 3) || =



5. The lighting model to be used in the FIRST milestone that will
   actually create a ray traced image is

   a. ambient                       b. diffuse

   c. specular                      d. confused