Question

Dada a função f: R -> R tal que f(x) = 4x-7, determine: a) f(-1) b) f(5) c) f(0) d) f(1/2) e) f(1/4)

Answer 1

Resposta:

f(x) = 4x-7

A) f(-1) = 4.-1 -7 = -4-7 = -11

B) f(5) = 4.5-7 = 20-7 = 13

C) f(0) = 4.0-7 = 0-7 = -7

D) f(1/2) = 4.1/2-7 = 2-7 = -5

E) f(1/4) = 4.1/4-7 = 1-7 = -6