Question

Ao tirarmos os coeficientes (a) das funções afins
f(x)=4x + 2, f(x)= -6x - 5, f(x) = 8x + 1.

Qual o valor da soma desses coeficientes?
a)17
b)7
c)-9
d)6
e)-12

Answer 1

4 + (-6) + 8

$4+\left(-6\right)+8\\\\+\left(-6\right)=-6\\\\=4-6+8\\\\4-6=-2\\\\=-2+8\\\\-2+8=6\\\\=6$