Question

f(x) =3x+4x+1 determine f(2)

Answer 1

F(x) =3x+4x+1
F(2) =3(2)+4(2)+1
F(2) =6+8+1
F(2) =15

Answer 2

Oi,

basta substituir o x por 2:

F(x) =3x+4x+1 

F(2)=  3.2+ 4.2+1

F(2)= 6+8+1

F(2)=  15