Răspuns :
T (a, 2a +4) apartine Gf==> f(a)= 2a+4
f(a)=3a-2 ==> 2a+4=3a-2
2a-3a=-4-2
-a=-6 ==> a=6 ==> T( 6, 16)
2x6+4=12+4=16
f(a)=3a-2 ==> 2a+4=3a-2
2a-3a=-4-2
-a=-6 ==> a=6 ==> T( 6, 16)
2x6+4=12+4=16