What Goes on the X-Axis and Y-Axis in a Centripetal Force vs Period Graph?

[ahhppull]

Homework Statement

When plotting the centripetal force vs period graph, what goes on the x-axis and y-axis? I thought that since centripetal force does not depend on period, it goes on the x-axis, but now I'm not too sure.

It also says plot Plot Fc as a function of T.

Homework Equations

The Attempt at a Solution

 

[SHISHKABOB]

there's a relationship between period, the velocity of the thing and the angular velocity

remember that a = v^2/r for constant velocity in a circle

 

[Spinnor]

If you double the period what happens to the velocity given the radius stays constant and thus what happens to the centripetal force?