Graphing

- What are stationary/turning points (6.30)
- Finding stationary/turning points (8.34)
- Concavity – please ignore his use of the word differential and replace with it with derivative (8.52)
- Inflection points – this is an often confused topic, and I couldn’t find a decent video that wouldn’t blur the truth, so here we go: an inflection point is a point where the concavity changes (i.e. from upwards to downwards or downwards to upwards), we find these by looking for points where the second derivative changes (from negative to positive or positive to negative). It is not enough that the second derivative is zero at the point; we need to check that there is a change in concavity/sign.
- Graphing using derivatives (20.31)
- A more complicated example (25.08)
- Graphing using everything we should know 1 (10.00)
- Graphing using everything we should know 2 (8.05)
- Graphs of a function, its first and second derivative (5.12)

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