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Mathematics: Post your doubts here!

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Can someone please help me solve these all variant 22, November2004 Q 19 , Q8 andQ16 may 2010 and Q17 may2009 ( how do I do transformation if the centre isn't (0,0)?) . I'm sorry they are a lot , thanks in advance. If you please have notes about transformations I'll be very grateful
 
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Can someone please help me solve these all variant 22, November2004 Q 19 , Q8 andQ16 may 2010 and Q17 may2009 ( how do I do transformation if the centre isn't (0,0)?) . I'm sorry they are a lot , thanks in advance. If you please have notes about transformations I'll be very grateful
www.youtube.com/watch?v=0M5kYoqKAkc‎
the best site--> http://www.s-cool.co.uk/gcse/maths/transformations/revise-it/transformations
http://www.mathsmadeeasy.co.uk/gcse-maths-transformation-a.htm
 
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for b(ii), use the difference method...
find the 1st 5 terms then take out the difference. like this:-
4 9 16 25 36
5 7 9 11
2 2 2
2nd row is the diff. btn the nos. in 1st row and 3rd row is diff. btn nos. in 2nd row. and since its a quadratic function (ax^2+bx+c)
2a=2, so a=1
3a+b=5, so b=2
a+b+c=4, so c=1
the function is x^2+2x+1
got it?
got it
 
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