Question

O valor numérico da função afim f(x)=4x-2 para:
a) x= 1
b) x= -2

Answer 1

A) x = 1

$f(x)=4x-2\\f(1) = 4.1-2\\f(1)=4-2\\f(1)=2$

B) x = -2

$f(x)=4x-2\\f(-2) = 4.(-2)-2\\f(-2)=-8-2\\f(-2)=-10$