Originally Posted by **hotmail590**

Thank you very much for your reply CaptainBlack!

Some questions I have:

For the first part a), I see that you have started by trying a value for k such as 1000 and then working your way to get C. Following your example, I tried to solve b) again. This time I used k as 1000 and came up with

| x^2 +1000| <= Cx^2 if x= 1001 then

1003001 < C(1002001)

and figured out C can be 100.

So I get k = 1000 and C = 100

Would it be also correct if C was any number larger than 100 such as 1000 or 10,000 or 99,999,999,999?

There are many differnt values for k and C for these types of problems (more than one answer) right?