IB DP Maths: AA HL復習筆記5.2.5 Concavity & Points of Inflection
Concavity of a Function
What is concavity?
- Concavity?is the way in which a?curve?(or surface)?bends
- Mathematically,
CONCAVE?DOWN?is often called?concave- CONCAVE?UP?is often called?convex
Exam Tip
- In an exam an easy way to remember the difference is:
- Concave?down?is the shape of (the mouth of) a sad smiley?☹?
- Concave up?is the shape of (the mouth of) a happy smiley?☺?
Worked Example
Points of Inflection
What is a point of inflection?
What are the conditions for a point of inflection?
How do I find the coordinates of a point of inflection?
Exam Tip
Worked Example
轉載自savemyexams
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