Diketahui f ( x ) = 5x – 15, maka nilai dari f ( 4 ) = By Admin ReiPosted on October 29, 2022 Diketahui f ( x ) = 5x – 15, maka nilai dari f ( 4 ) = F(x ) = 5x – 15f(4) = 5(4) – 15f(4) = 20 – 15f(4) = 5