Respuesta :

Megabruh9000

Answer: f(x) = 3x

x multiplied by 3 gives you f of x

Hamed313

Answer:

[tex]4 \times 3 = 12 \\ 5 \times 3 = 15 \\ 6 \times 3 = 18 \\ 7 \times 3 = 21 \\ \\ y = 3 \times x[/tex]