Question

Dada a função f(x)=2x pede-se:
a) F(3)
b) o valor de x pra que se tenha f(x)=1/16

Answer 1

f ( x ) = 2 x

a ) f ( 3 ) = ?

f ( 3 ) = 2 * 3

f ( 3 ) = 6

b ) f ( x ) = 1 / 16

1 / 16 = 2 x

1 = 32 x

x = 1 / 32

Answer 2

Dada a função f(x)=2x
_________//////
A) f(3)
f(x)=2x
f(3)=2.3
f(3)=6
_________//////
B) f(x)=2x para f(x)=1/16
2x = 1/16
X = 1/16/2
X = 1/16 × 1/2
X = 1/32
____________________////////