Question

Considere a função f x=-2x-1tal que R R. Qual o valor de f -2+f 3? (A) –4 (B) –1 (C) 0 (D) 1 (E) 2

Answer 1

f(-2)=-2.(-2)-1
f(-2)=4-1
f(-2)=3

f(3)=-2.(3)-1
f(3)=6-1
f(3)=5

f(-2)+f(3)=
3+5=8