._.f(x) = 7x – 23 f(3) = …? Pake cara ygy ​

f(x) = 7x – 23

f(3) = 7(3) – 23

f(3) = (7 × 3) – 23

f(3) = 21 – 23

f(3) = -2

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• Penyelesaian :

• Diketahui :

→ f(x) = 7x – 23

• Ditanya :

→ f(3) = ?

• Jawab :

→ f(x) = 7x – 23

→ f(3) = 7(3) – 23

→ f(3) = ( 7 + 7 + 7 ) – 23

→ f(3) = ( 14 + 7 ) – 23

→ f(3) = 21 – 23

→ f(3) = –2

• Kesimpulan :

→ Jadi, hasil nya adalah –2