No problem.

You want me to explain how I got the value for a?

Well I noticed the 0,1,4,9 perfect squares pattern.

Normally, if

, then for x=0,1,2,3... the y-values will be 0,1,4,9...

However, I don't want to add 0,1,4,9... to

because I only need to add 0, 0.01, 0.04, 0.09.... So,

will be

**exactly 100 times too big** (bigger than what I want). This means that I need to make the squared term 100 times smaller to make the pattern work. So, I will change the first term to

. Now it is correct.

Do you understand? Don't hesitate to ask for more help!