What Is the Value of K in a Pendulum Lab?

[bolivartech]

Homework Statement

We did a pendulum lab and found Q then we were asked to find K from that. The professor gave us a formula K= 4pi²/m²
where m was the slope of a line on a graph of our periods vs length^Q
then stated it should be number we would recognize. I assumed maybe we were going to calculate g, as this is something I have done before but I thought K was a spring constant from Hookes law. What am I trying to find.

Homework Equations

g=Lpi²/T²

The Attempt at a Solution

The data is relative but I did get some answers around 9.77, close enough to 9.8 considering the human error involved.

 

[Kurdt]

Perhaps your professor just relabelled the constants to give the element of surprise. It would be pretty obvious what it would be if he had used the standard g.