Question

fie functia f: R -> R, f(x) =3x-4. Determinati m ∈ R stiind ca punctul A(m,m+2) ∈ G

Answer 1

f(m)=m+2
3m-4=m+2
3m-m=2+4
2m=6
m=3

Answer 2

A(m, m+2) ∈ Gf⇒ f(m)= m+2
  f(m)= 3m-4
3m-4=m+2
3m-m=2+4
2m=6
 m=3