Răspuns :

f(x)=3x+7
g(x)=ax+b
(g∞f)(x)=-6x-5
Generam (g∞f)(x)=a(3x+7)+b
Efectuam calculele:
3ax+7a+b=-6x-5
Egalam coeficientii termenilor corespondenti:
3a=-6
a=-2
7a+b=-5
Introducem a=-2 si obtinem:
-14+b=-5
b=9
g(x)=-2x+9
Spor la lucru!
Prof De Mate  

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