Qualification > Math
IGCSE MATHS Doubts
Fastal:
--- Quote from: A@di on May 08, 2010, 04:39:10 pm ---The base didn't change its shape. Thus, the x-axis is invariant.
--- End quote ---
but it can be y=1 axis too right?
Ghost Of Highbury:
Anything parallel to x-axis.
Fastal:
but how do you know which one it is, cuz to find the scale factor you need to know the exact invariant line.
Baladya:
srry to interrupt, but do u guys know how can we use stuff like square root on the forum? I've seen a post in this topic that used that (the font looked weird tho)
ksitna:
--- Quote from: @d!_†oX!© on May 08, 2010, 04:21:05 pm ---is it,
(x-3)/4 = 4/(x-3)
then,
=> (x-3)(x-3) = 4*4
=> x2 -6x +9 = 16
=> x2 -6x -7 = 0
=> (x+1)(x-7) = 0
=> x = -1 , x = 7
--- End quote ---
yeah thts what i meant
thanks
but it said simplify as a fraction
i still dont know how to do it
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