Jawaban:
fungsi
[tex]f(x) = 2x - 3[/tex]
nilai dari f(3x+4)?
[tex]2x - 3 = 3x + 4 \\ 2x - 3x = 4 + 3 \\ - x = 7 \\ x = - 7[/tex]
[tex]f(x) = f( - 7)[/tex]
[tex]f(x) = 2x - 3 \\ f( - 7) = 2( - 7) - 3 \\ f( - 7) = - 14 - 3 \\ f( - 7) = - 17[/tex]
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Jawaban:
fungsi
[tex]f(x) = 2x - 3[/tex]
nilai dari f(3x+4)?
[tex]2x - 3 = 3x + 4 \\ 2x - 3x = 4 + 3 \\ - x = 7 \\ x = - 7[/tex]
[tex]f(x) = f( - 7)[/tex]
[tex]f(x) = 2x - 3 \\ f( - 7) = 2( - 7) - 3 \\ f( - 7) = - 14 - 3 \\ f( - 7) = - 17[/tex]