👉 A cubic curve.
Alright class, settle down, let’s take a look! That word “cubic,” you see, is quite a treat, It’s not just curves, though that's part of the feat! The dictionary's right, it does describe, A shape with three dimensions – watch it thrive! Think about a cube, so solid and grand, With sides all equal, across the land. Or maybe a box, built square and true, That’s cubic too, for me and you! It means “having three measures,” you see, Like length and width and height, perfectly free! So "cubic curve" is just one way to say, It has volume – in every single way! Does that make sense? Any questions to share?