Question

dada a função f(x) = 1/4 × + ¹ determine f(– 1) = b) f(– 2)=



preciso urgente​

Answer 1

Calculando a função dada f(x), obtivemos: f(-1)= 3/4 e f(-2)= 1/2.

Acompanhe a solução:

Sendo a função dada: $\Large\boxed{f(x)=\dfrac{1}{4}x+1}$,

Substituindo os valores de x, temos:

Cálculo:

>>> Item A:

• f(-1) → x = -1

$f(x)=\dfrac{1}{4}x+1\\\\f(-1)=\dfrac{1}{4}\cdot(-1)+1\\\\f(-1)=-\dfrac{1}{4}+1\\\\f(-1)=\dfrac{-1+4}{4}\\\\\Large\boxed{\boxed{f(-1)=\dfrac{3}{4}}}\Huge\checkmark$

>>> Item B:

• f(-2) → x = -2

$f(x)=\dfrac{1}{4}x+1\\\\f(-2)=\dfrac{1}{4}\cdot(-2)+1\\\\f(-2)=-\dfrac{2}{4}+1\\\\f(-2)=-\dfrac{1}{2}+1\\\\f(-2)=-\dfrac{-1+2}{2}\\\\\Large\boxed{\boxed{f(-2)=\dfrac{1}{2}}}\Huge\checkmark$

Resposta:

Portanto, f(-1)= 3/4 e f(-2)= 1/2.

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Bons estudos!