Sketching graphs

[hifer]

when sketching graphs, is it essential tat u put arrows on ends of the curve? Irena from TSFX seemed to emphasize that alot..

And when the ques say sketch without specifying what u need to show, would it be necessary to show the endpts and intercepts?

[Freitag]

I'd definitely label intercepts and endpoints.

If the graph has no end points, what's to lose by using arrows to indicate that the graph continues beyond your sketch?

[maxleng]

question about trig graphs, i dont know how to get the y int w/o calc?

eg. y=2sin(2(x-pi/3))

y= 2sin(-2pi/3)

where do i go from here?

[Freitag]

question about trig graphs, i dont know how to get the y int w/o calc?

eg. y=2sin(2(x-pi/3))

y= 2sin(-2pi/3)

where do i go from here?

Sin (-2pi/3) --> Third Quadrant. Sin will be negative (All Schools Teach Crap)

Hence Sin ( -2pi / 3 ) = - Sin ( pi / 3 ) = - root(3) / 2

Therefore 2sin(-2pi/3) = -root(3)

[maxleng]

i knew i should have gone over trig properties...

and its likely that there will be a trig sketching Q, fuk!!

[Freitag]

Just remember your exact values. Drum them into your head tomorrow morning at breakfast or something ^^

[bubble sunglasses]

Just remember your exact values. Drum them into your head tomorrow morning at breakfast or something ^^

 
  Freitag, I think you made a mistake with one of the scores in your sig.

    Meg got 41 for Revs, therefore surely you must have got 40???

[Freitag]

Nope, got a 38. I got a statement of marks, failed on the final Russia section (13/20, wtf?) , got an A for the exam.

[bubble sunglasses]

Nope, got a 38. I got a statement of marks, failed on the final Russia section (13/20, wtf?) , got an A for the exam.

   I was joking, remeber you'd agreed with Meg that whatever she'd get, you'd get one mark lower. I remember you said to her "Can you get 50 so I can get 49?"  

   Nah, your work on vcehistory.info improved *heaps* over time -some of your later responses to Steve's trial qs owned everydody else's