Question

Função 1 grau com conta pfvr f(x) = 1/2 . x + 4

X= 1/4

X= -1

Answer 1

Função 1 grau  f(x) = x/2 + 4 

f(1/4) = 1/8 + 4 = 33/8 

f(-1) = -1/2 + 4 = -7/2

Answer 2

f(x) = 1x/2 + 4
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f(1/4) = 1/2 . 1/4 + 4 
f(1/4) = 1/8 + 4 
f(1/4) = (32+1)/8 = 33/8

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f(-1) = 1/2 (-1) + 4 
f(-1) = -1/2 + 4 
f(-1) = (-1+8)/2
f(-1) =  7/2