Question

Dada a função f(×)=2×-4 determine
B) f(2)=
C) f(0)=
D) f(-1)=

Answer 1

F(x) = 2x - 4

b)

F(2) = 2.2 - 4
F(2) = 4 - 4
F(2) = 0

c)

F(0) = 2.0 - 4
F(0) = 0 - 4
F(0) = -4

d)

F(-1) = 2.(-1) - 4
F(-1) = -2 - 4
F(-1) = -6