Question

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Answer 1

Resposta:

Letra D

Explicação passo-a-passo:

$f(x) = 5x - 4 \\ \\ f( - 2) = 5( - 2) - 4 \\ f( - 2) = - 10 - 4 \\ f( - 2) = - 14 \\ \\ f( - 1) = 5( - 1) = - 4 \\ f( - 1) = - 5 - 4 \\ f( - 1) = - 9 \\ \\ f( - 2) - f( - 1) = - 14 - ( - 9) = - 14 + 9 = - 5$