Question

Dada a função f:R-->R, tal que f (x)= 3x-2, calcule
a)f(o)= b)f(2)= c)f(-1)= d)f(1/2)=

Answer 1

a) 3(0)-2=-2
b) 3(2)-2= 4
c) 3(-1)-2= -5
d) 3(1/2)-2= 3/2-2
mmc= 2

3-4/2=-1/2

Saúde

Doze

Answer 2

a)
f(x) = 3x - 2
f(0) = 3.0 - 2
f(0) = 0 - 2
f(0) = - 2
------------------------------------------
b)
f(2) = 3.2 - 2
f(2) = 6 - 2
f(2) = 4
---------------------------------------
c)
f( - 1) = 3.( - 1) - 2
f( - 1) = - 3 - 2
f( - 1) = - 5
-------------------------------------
d)
f(1/2) = 3. 1  - 2
               2

f(1/2) = 3  - 2  
            2

mmc = 2

f(1/2) = 3 - 4
             2

f(1/2) =  - 1
               2