Global extrema on [a, b]: candidates, then compare

Year 12 Mathematics Advanced · drag the endpoints · a global extremum sits at a stationary point, an endpoint, or a point where f′ does not exist
Function

f on the closed interval

endpoint stationary f′ undefined
Move a or b so that the interval stops at a point where the curve is still climbing.
0
3

Arrow keys move an endpoint by 0.25. The interval is always closed: both endpoints count.

Predict before the values appear. Which candidate holds the global

Commit first. The table stays hidden until you do.

Candidates on [0, 3]

The derivative finds only the stationary candidates. The endpoints and any corner have to be added by hand.