Pertanyaan

Jika f ( x ) = x − 3 x 2 − 2 x + 1 , maka f ( 2 ) = ....

Jika $f (x) = \frac{x ^{2} - 2 x + 1}{x - 3}$ , maka $f (2)$ = ....

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S. Nur

Master Teacher

Jawaban terverifikasi

Pembahasan

Substitusi pada fungsi , sehingga Jadi, nilai .

Substitusi x equals 2 pada fungsi $f apostrophe open parentheses x close parentheses equals fraction numerator x squared minus 2 x plus 1 over denominator x minus 3 end fraction$ , sehingga

$table attributes columnalign right center left columnspacing 0px end attributes row cell f apostrophe open parentheses x close parentheses end cell equals cell fraction numerator x squared minus 2 x plus 1 over denominator x minus 3 end fraction end cell row cell f apostrophe open parentheses 2 close parentheses end cell equals cell fraction numerator 2 squared minus 2 open parentheses 2 close parentheses plus 1 over denominator 2 minus 3 end fraction end cell row cell f apostrophe open parentheses 2 close parentheses end cell equals cell fraction numerator 4 minus 4 plus 1 over denominator negative 1 end fraction end cell row cell f apostrophe open parentheses 2 close parentheses end cell equals cell negative 1 end cell end table$

Jadi, nilai f apostrophe open parentheses 2 close parentheses equals negative 1 .