abz_tech
what does f '(1) stand for ?
i know f(1) just replaces the x in a equation... but what does the apostrophe in f '(1) mean?.....
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faixy
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it is inverse
faixy
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replace x=1 in the inverse function of f
abz_tech
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hmmm?? can u explain to me like in this equation?? x^2 - x +2
faixy
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it is a bit difficult to explain through this but i will try
abz_tech
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k ty =/
abz_tech
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i will type the whole question... in case...
let f(x) = x^2 + ax + b. if f(1) = 6 and if f'(1)=-4, find the values of a and b and hence, find the local minimum point on y = f(x).
amistre64
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f'(1) ususally denotes the derivative when x=1
abz_tech
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so f'(1) is just the derivitive of x^2 + ax + b?
amistre64
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f' is teh derivative of that, the (1) means you replace x by 1 as usual
abz_tech
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ah ok, thx a lot ^.^
amistre64
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yw