Uploaded December 2010 | Updated September 2026, 3 weeks ago
An ice-cream parlour is offering a Mega-Bowl Special: 12 scoops of icecream in a bowl from any of 12 flavours. How many different mega-bowl options are there?
In this video we explore the world of multi-choosing - choosing if repeats are allowed - and answer the mega-bowl puzzle.
An ice-cream parlour is offering a Mega-Bowl Special: 12 scoops of icecream in a bowl from any of 12 flavours. How many different mega-bowl options are there?
In this video we explore the world of multi-choosing - choosing if repeats are allowed - and answer the mega-bowl puzzle.




![All Quadratic Graphs are U shaped (TANTON Mathematics)
The equation y = ax^2 + bx + c is the equation of a U-shaped graph (x^2) plus the equation of a line (bx+c). If one pauses for a moment, it is not at all obvious that these two shapes added together give another U shape! We explain why in this follow-up video to graphing quadratics.
[p.s. I was human again! There is a small error near the very end of the video. It is not a big deal, but for extra points, can you spot it??] All Quadratic Graphs are U shaped (TANTON Mathematics)](https://i.ytimg.com/vi/SA61hmwUD8I/mqdefault.jpg)





