multi choice question

label Mathematics
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May 29th, 2015

All the functions proposed have the same pattern :

f(x)=a(x+3)^2(x+1)(x-2)^2(x-3) which corresponds to the graph regarding the function's zero. We have to determine a

let's calculate f(0)

f(0)=a*3^2*1*2^2*(-3)=-108a

in the graph we see that f(0)=-12 so 

-108a = -12 and a = 12/108=1/9

The correct answer is A.  


May 29th, 2015

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May 29th, 2015
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