[tex]80.3[/tex]
1) In this problem, we need to resort entirely to the table, since we don't know the rule of that function.
2) And since the question is what is f(-34.2) let's look for that in the column of x, to find the corresponding value when we plug -34.2 into the x-variable of that function.
3) So, we can tell that the answer is:
[tex]f(-34.2)=80.3[/tex]
