Respostas

2014-08-22T23:03:24-03:00
A)f (x)=3×+12
-2. 3 (-2)+12=-6+12=6
-1. 3 (-1)+12=-3+12=9
0. 3×0+12=0+12=12
1. 3×1+12=3+12=15
2. 3×2+12=6+12=18