1. Which of the following are true about linear transformations?
    a) points go in as column vectors
    b) we must use homogeneous coordinates (higher dimensional coordinate=1) if we want to use translations
    c) they compose from right to left, like functions
    d) more than one of a, b and c, but not all of them
    e) all of a, b and c

  2. To keep a car on a curved race track, we can perform the appropriate matrix operations in the following order:
    a) Rot.Trans_on_curve.car
    b) Trans_on_curve.Rot.car
    c) Either a) or b) works
    d) Neither a) nor b) works