Question

Dada a função f: R - >R tal que f(X) =2.x-2, calcule

A) f(0)= b) f(3)= C) f(-4)=

Answer 1

f(x) = 2x - 2

a)

f(0) = 2.0 - 2 = 0 - 2 = -2

b)

f(3) = 2.3 - 2 = 6 - 2 = 4

c)

f(-4) = 2.(-4) - 2 = -8 - 2 = -10