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f:R--->R,f(x)=(3a-4)x-4a+3
A(3,-19)
Determinati aE R


Răspuns :

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Vezi imaginea MILADYDANCECLUB
A(3;-19) ∈Gf ----->F(3)=(3a-4)3-4a+3 ;F(3)=-19 ----> 9a-12-4a+3=-19 ---> 5a=-19+9 ---------> 5a=10 -----> a =2 ------> F(x)=2x-5