Pertanyaan

Jika f − 1 ( x − 1 ) = x − 2 4 − 3 x , maka nilai f ( - 5) adalah …

Jika $f^{- 1} (x - 1) = \frac{4 - 3 x}{x - 2}$ , maka nilai f(-5) adalah …

-2
0
2
4

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Jawaban terverifikasi

Pembahasan

$I n g a t colon J i k a f to the power of negative 1 end exponent left parenthesis a right parenthesis equals b m a k a f left parenthesis b right parenthesis equals a. f to the power of negative 1 end exponent open parentheses x minus 1 close parentheses equals fraction numerator 4 minus 3 x over denominator x minus 2 end fraction M a k a space d i p e r o l e h colon f open parentheses fraction numerator 4 minus 3 x over denominator x minus 2 end fraction close parentheses equals x minus 1 K a r e n a space y a n g space d i tan y a k a n space a d a l a h space f left parenthesis negative 5 right parenthesis comma space d i m i s a l k a n colon space f left parenthesis negative 5 right parenthesis equals p D a r i space p e r s a m a a n space f open parentheses fraction numerator 4 minus 3 x over denominator x minus 2 end fraction close parentheses equals x minus 1 space space d a n space f left parenthesis negative 5 right parenthesis equals p comma space d i p e r o l e h space h u b u n g a n fraction numerator 4 minus 3 x over denominator x minus 2 end fraction equals negative 5 4 minus 3 x equals negative 5 x plus 10 2 x equals 6 space x equals 3 D a r i space p e r s a m a a n space f open parentheses fraction numerator 4 minus 3 x over denominator x minus 2 end fraction close parentheses equals x minus 1 space space d a n space f left parenthesis negative 5 right parenthesis equals p comma space j u g a space d i p e r o l e h space h u b u n g a n colon p equals x minus 1 space p equals 3 minus 1 space p equals 2 space space J a d i comma space f left parenthesis negative 5 right parenthesis equals 2$