Question

Determine o valor numérico da função f(x) = x/2 + 1/3 para:
a) x = 0
b) x = 1
c)x = -2/3

Answer 1

f(x)=x/2+1/3
f(0)=0/2+1/3 ⇒f(o)=1/3
f(1)= 1/2+1/3 ⇒{fazer o mmc}⇒f(1)=3+2/6⇒f(1)=5/6
f(-2/3)=-2/3/2+1/3⇒{primeiro fazer a fração -2/3/2/1 que resulta em }⇒f(-2/3)=-2/6+1/3⇒{fazer mmc de novo} ⇒ f(-2/3)=-2+2/6 ⇒0/6⇒zero

Answer 2

Oi,

Vamos substituir o valor e X

f (x)=x/2+1/3

A) x=0

f (0)= 0/2 +1/3

f (0)= 1/3

B) x=1

1 1
f (1/2)= -- + --
2 3

3+2
f (1/2)= ----- =5/6
6

C) x= -2/3

f (-2/3) = (-2) + 1
----- ----
3 3
_____
2

-2 1
--- + ---
6 3

0/18=0

f (-2/3)=0