Question

Diketahui fungsi kuadrat f(x) = x^2+2x+6. Tentukan nilai X = 1, 2, dan 3!

Answer 1

F(x) = x^2 + 2x + 6
f(1) = 1^2 + 2(1) + 6
      = 1+2+6
      = 9

f(2) = 2^2 + 2(2) + 6
      = 4+4+6
      = 14

f(3) = 3^2 + 2(3) + 6
      = 9+6+6
      = 21