Question

Dada a função
$f (x) = - 7 x + 11$
Caucule:
$f(\frac{1}{3} )$
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Answer 1

$f(x) = - 7x + 11$

$\boxed{f( \frac{1}{3} )}$

$f( \frac{1}{3} ) = - 7 \: . \: \frac{1}{3} + 11$

$f( \frac{1}{3} ) = - \frac{7}{3} + 11$

$f( \frac{1}{3} ) = \frac{ - 7 + 33}{3}$

$\boxed{f( \frac{1}{3} ) = \frac{26}{3} }$

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