Graphs Flashcards
1
Q
What are the conditions for a stationary point of inflection?
A
First D=0
Second D=0
Sign change of first D from left to right ( sub numbers in)
2
Q
Non stationary point of inflection
A
1st D≠0
2nd D=0
3
Q
Concave upwards
A
2nd D>0
Cup shape
4
Q
Concave downwards
A
2nd D<0
n shape
5
Q
How to determine if a function is increasing or decreasing
A
Look at the first D
If positive then increasing, negative then decreasing
