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Diketahui f ( 3 x − 1 ) = − 6 x + 7 . Nilai dari t ( 5 ) − 3 f ( 1 ) = ...

Diketahui $f (3 x - 1) = - 6 x + 7$ . Nilai dari $t (5) - 3 f (1)$ = ...

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Klaim

N. Mustikowati

Master Teacher

Mahasiswa/Alumni Universitas Negeri Jakarta

Jawaban terverifikasi

Pembahasan

Invers dari adalah

$straight y to the power of negative 1 end exponent equals fraction numerator straight x plus 1 over denominator 3 end fraction straight f left parenthesis straight x right parenthesis space equals space minus 6 open parentheses fraction numerator straight x plus 1 over denominator 3 end fraction close parentheses plus 7 equals negative space 2 left parenthesis straight x plus 1 right parenthesis plus space 7 space equals space minus 2 straight x minus 2 plus space 7 space equals space minus space 2 straight x plus 5 straight f left parenthesis 5 right parenthesis space equals space minus 2 left parenthesis 5 right parenthesis plus 5 space equals space minus space 10 space plus space 5 space equals space minus space 5 straight t left parenthesis 1 right parenthesis space equals space minus 2 left parenthesis 1 right parenthesis space plus space 5 space equals negative 2 plus space 5 space equals space 3 straight t left parenthesis 5 right parenthesis minus 3 straight f left parenthesis 1 right parenthesis space equals space minus 5 space minus space 3 left parenthesis 3 right parenthesis space equals negative 5 minus space 9 space equals negative 14$