Question

dada função f(x) = -2x - 1 , faça o valor de f(2) - f(-3) ​

Answer 1

$\large\sf{}f(x) = - 2x - 1$

Vamos lá:

$\large\sf{}f(2) = - 2 \times 2 - 1 \\ \large\sf{}f(2) = - 4 - 1 \\ \large\sf{}f(2) = - 5$

$\large\sf{}f( - 3) = - 2 \times \left( - 3\right) - 1 \\ \large\sf{}f( - 3) = 6 - 1 \\ \large\sf{}f( - 3) = 5$

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