Question

Na função f(x)=4x-2, de R em R, determine:
a) f(0)
b) f(-1)
c) f(2)
d) f(1/3)

Answer 1

a) f(0)= 4×0-2
0-2
-2
b) f(-1)= 4×(-1)-2
4-2
2
c) f(2)= 4×2-2
8-2
6