Question

Dada a função f(x) = 12x – 5, obtenha.

a) f(–2) =



b) f(+2) =



c) f(0) =



d) f(–1) =

Answer 1

Dada a função f(x) = 12x – 5, obtenha.
Só  SUBSTITUIR OS VALORES  em (x)


a) f(–2) =
f(x) = 12x - 5
f(-2) = 12(-2) - 5
f(-2) = - 24 - 4
f(-2) = - 28


b) f(+2) =
f(x) = 12x - 5
f(+2) = 12(2) - 5
f(+2) = 24 - 5
f(+2) = 19




c) f(0) =
f(x) = 12x - 5
f(0) = 12(0) - 5
f(0) = 0 - 5
f(0) = - 5

d) f(–1) =
f(x) = 12x - 5
f(-1) = 12(-1) - 5
f(-1) = - 12 - 5
f(-1) = - 17