Question

Sendo F ( x ) = 12 - 5x, determine:
a) F ( 3 )
b) F ( 10 )
c) F ( -6 )
d) F ( 0 )

Ajudem jenteeee!!

Answer 1

Resposta:

a) -3

b) -38

c) 42

d) 12

Explicação passo-a-passo:

a) F ( 3 ) = 12 - 5 x 3 <=>

<=> F ( 3 ) = 12 - 15 <=>

<=> F ( 3 ) = -3

b) F( 10 ) = 12 - 5 x 10 <=>

<=> F ( 10 ) = 12 - 50 <=>

<=> F ( 10 ) = - 38

c) F ( - 6 ) = 12 - 5 x ( - 6 ) <=>

<=> F ( - 6 ) = 12 + 30 <=>

<=> F ( - 6 ) = 42

d) F ( 0 ) = 12 - 5 x 0 <=>

<=> F ( 0 ) = 12 - 0 <=>

<=> F ( 0 ) = 12