Question

Dada a Função F(x) = 6x - 3 , Calcule
a) f(-2)
b) f(0)
c)f (1/4)
d) f ( raiz de 2)

Answer 1

Olá!!!

Resolução!!!

Função :

f ( x ) = 6x - 3

a)

f ( - 2 ) = ?

f ( x ) = 6x - 3
f ( - 2 ) = 6 • ( - 2 ) - 3
f ( - 2 ) = - 12 - 3
f ( - 2 ) = - 15

b)

• f ( 0 ) = ?

f ( x ) = 6x - 3
f ( 0 ) = 6 • 0 - 3
f ( 0 ) = 0 - 3
f ( 0 ) = - 3

c)

• f ( 1/4 ) = ?

f ( x ) = 6x - 3
f ( 1/4 ) = 6 • 1/4 - 3
f ( 1/4 ) = 6/4 - 3
f ( 1/4 ) = 6/4 - 12/4
f ( 1/4 ) = - 6/4 : 2
f ( 1/4 ) = - 3/2

d)

• f ( √2 ) = ?

f ( x ) = 6x - 3
f ( √2 ) = 6 • √2 - 3
f ( √2 ) = 6√2 - 3

Espero ter ajudado!;