Oct/Nov Exam Q4 b

Is the diagram correct for this agorithm? It states that the parametric equation has values for both (x1,x2) and (y1,y2), but no such values (y1, y2) in the diagram. Could it be that point Q contains the x2 and the y2?

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Don't be different...be the one making a difference

Hi BlaXpydo

I assume you talk about the 2010 Oct/Nov Exam. I agree with you that the diagram looks incorrect and also the textual answer in the memorandum. I have the 2006 Handbook and if you look on page 333 Section 7.4.3 you will see they state:

p1 = [x1, y1] p2= [x2,y2]

So I believe you are correct that P should be (x1, y1) and Q (x2,y2) and thus we also need to fix the first line of the answer from:

"Suppose we have a line segment defined by two endpoints p (x1, y1) q(x1, y1)."

to

"Suppose we have a line segment defined by two endpoints p (x1, y1) q(x2,y2). "

Hope this helps (and are correct)

Thanks man. Yip, did check the book, guess it was just a small slip up with the 'syntax' there.

Hope you all are getting the work load done for this exam.

_______________________________________
Don't be different...be the one making a difference