1.Diketahui fungsi f:x→2x+3, pada himpunan bilangan bulat. Tentukan: b. Nilai f(7)

1.Diketahui fungsi f:x→2x+3, pada himpunan bilangan bulat.
Tentukan:
b. Nilai f(7)

Jawaban yang benar adalah 17

Pembahasan:

Diketahui pada soal fungsi f(x) = 2x + 3
Nilai f(7) dengan cara mensubsitusikan nilai x = 7 ke fungsi f(x) = 2x + 3
f(x) = 2x + 3
f(7) = 2(7) + 3
f(7) = 14 + 3
f(7) = 17

Jadi, nilai f(7) adalah 17

 

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