A scoring system is used to assess your mastery of this topic.

• Each problem is worth a maximum of 25 points. If you produce a correct sketch on your first attempt, you score 25 points.


• If your sketch is not correct, you will see a message indicating the reason the sketch is incorrect and 2 points will be deducted from your score. You will be able to try again to complete the sketch correctly.


• Continue working on the problem until you produce a correct sketch.