Acest ex,este urgent.Multumesc

Acest Exeste UrgentMultumesc class=

Răspuns :

A(1;6) apartine graficului daca f(1)=6
(2a+1)*1+(a+1)/3=6
(2a+1)*3+a+1=6*3
6a+3+a+1=18
7a+4=18
7a=14
a=2