Question

dada a função f(x) = 3x - 2, calcule:

Answer 1

f(x)=3x-2
f(1/2)=3.1/2-2
f(1/2)=3/2-2
f(1/2)=3-4/2
f(1/2)= -1/2

f(7/4)=3.7/4-2
f(7/4)=21/4-2
f(7/4)=21-8/2
f(7/4)= 13/4

Substituir:
e) -1/2 - 13/4= -2-13/4= -15/4