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Revision Thread

elDino

Deal With It.
is a Contributor Alumnusis a Battle Simulator Moderator Alumnus
The Revision Thread

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Since a lot of us are going through exams right now, and I'm pretty sure that many of us will get stuck while revising, I decided to make this revision thread.
Basically, if you're stuck on something, or you want to learn some revision techniques, then post here and I'm pretty sure that one of Smogon's members can help you out, since we have a lot of very smart users here.

Rules:


  • Try to answer another person's question before posting your own.
  • Ask your question as clearly as you can.
  • Don't expect me myself to answer everything; I'm not a genius!
  • Help out first, ask questions second.


Good luck with you're revision!
 
Good luck with your revision

APs just ended so no questions but happy to help!!
 
Um, I have mid-years coming up and I need help with the rules of Inverse Functions for Mathematical Methods Year 11. Usually it's fine, but I'm a bit confused because we don't have notes on it and nor does our textbook. Help appreciated!
 
Could someone explain this symbol to me '
Yep its that apostrophe I came across while doing polynomials and the book didnt give a clear enough explanation, and because its an Extension topic the class is on once a week :/

Also is Polynomials harder than I think (In my course)? Its pretty basic straightforwardness
 
Sy123 said:
Could someone explain this symbol to me '
Yep its that apostrophe I came across while doing polynomials and the book didnt give a clear enough explanation, and because its an Extension topic the class is on once a week :/
Click to expand...

Well as far as I know f'(x)=x is the derivative of f(x)=x. But I don't think that's something you'd just come across in your textbook without any explanation, or something that your teacher would expect you to pick up on your own..
Ex:
f(x)=3x^5 + 1/2(x^2) - 7x + 5
f'(x)=15x^4 + x -7

Who knows, maybe LevitatingLamprey is right, I really have no idea what she is talking about though.

http://en.wikipedia.org/wiki/Derivitives
And here is a neat gif that would have been very useful three/four months ago.
Graph_of_sliding_derivative_line.gif
 
levitatinglamprey appears to be talking about set theory which has nothing to do with polynomials soooo
 
LevitatingLamprey said:
Um, I have mid-years coming up and I need help with the rules of Inverse Functions for Mathematical Methods Year 11. Usually it's fine, but I'm a bit confused because we don't have notes on it and nor does our textbook. Help appreciated!
Click to expand...
Basically there are two ways of doing it. If you're quick:

  • Basically just replace every thing with its opposite- Plus becomes minus, division becomes multiplication and vice-versa
  • Or you can do this:
Take the equation- f(x) = 2x +14
Then form it in terms of y:
y = 2x + 14
and make x the subject of the formula:
(y-14)/2

Then just replace y with x and your final formula will be:
f(x)^-1= (x-14)/2
 
Thanks LevitatingLampery that well was pretty confusing but Ill just ask my teacher on Wednesday

Anyways here is another question
Is the School Certificate as easy as my English teacher says it is?

its designed so that the dumbest person in the state can pass
Click to expand...

School Certificate = Compulsory Year 10 exam
 
Sy123 said:
Thanks LevitatingLampery that well was pretty confusing but Ill just ask my teacher on Wednesday

Anyways here is another question
Is the School Certificate as easy as my English teacher says it is?



School Certificate = Compulsory Year 10 exam
Click to expand...
It's very easy. If you put some effort into it, getting 90+ is not hard. But more to the point, it doesn't matter at all.
 
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