Jawabanmu

2014-01-29T18:43:59+07:00
F(x)=4x-3
f(a)=1
-----> f(a)= 4a-3=1
4a=4
a=1
f(2)=b--->4x-3
b= 4(2)-3
b=8-3=5
a+b
=1+5
=6