Question

Qual é o valor da expressão f(0) + f(-1) – f(2), sendo f(x) = – 3x + 2. (A) 11 (B) 3 (C) 1 (D) – 1 (E) 5 Valor:0,66 ID:TOL16mat.3ºbim

Answer 1

f(0)= -3(0)+2

f(0)= 0+2

f(0)= 2

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f(-1)= -3(-1)+2

f(-1)= 3+2

f(-1)= 5

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f(2)= -3(2)+2

f(2)= -6+2

f(2)= -4

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f(0) + f(-1) – f(2) ⇒ 2+5-(-4)= 2+5+4= 11

Resposta: (A) 11