The nth term of an AP is $a_n=8-3n$. Which is its first negative term, and what is its value?

$a_1=5,a_2=2,a_3=-1$. So the first negative term is the 3rd and its value is -1. The 2nd term (2) is still positive, and -4 is the 4th term, which is negative but not the first one.