Question

Se f(x)=4x+2 e g(x)=x/2. Determine:

a) f(5)=
b) g(-1)=
c) f(f(3))=
d) g(f(10))=
e) g(g(g(16)))=​

Answer 1

Resposta:

a) f(5) =

f(5) = 4.5 + 2

f(5) = 20 + 2

f(5) = 22

b) g(-1)

g(-1) = -1/2

g(-1) = -0,5

c) f(f(3)) =

f(3) = 4.3 + 2

f(3) = 12 + 2

f(3) = 14

f(14) = 4.14 + 2

f(14) = 48 + 2

f(14) = 50

d) g(f(10)) =

f(10) = 4.10 + 2

f(10) = 40 + 2

f(10) = 42

g(42) = 42/2

g(42) = 21

e) g(g(g(16))) =

g(16) = 16/2

g(16) = 8

g(8) = 8/2

g(8) = 4

g(4) = 4/2

g(4) = 2