Flashcards
C3 Functions
Cards in this deck (13)
- 1domain of f(x)?x terms e.g. x>a
- 2range of f(x)?y terms,e.g. f(x)>4
- 3how to find?sketches of graph
- 4composite functions e.g. fgh(3)work from right to left, keep putting new number in
- 5domain of composite function?range of the first function on the right
- 6range of composite?draw on graph if you can, or just try see what biggest/smallest can be with common sense
- 7what kind of functions have an inverse?one to one functions
- 8how to find an inverse function?- swap x and y
- rearrange to make y the subject
- change y to f^-1(x) - 9domain of inverse?range of f(x)
- 10range of inverse?domain of f(x)
- 11how to find point of intersection?f(x) = f^-1(x)
THEN CHOOSE
f(x) = x <- then solve
OR
f^-1(x) = x <- then solve - 12if you had to draw them?draw easiest one, then reflect in the line y=x, draw other
- 13Inverse trig graphs?make one to one, swap domain and range e.g.
inverse sin graph
D: -1<= x <= 1
R: -1/2(pi) <= sinx <= 1/2(pi)
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- A level Maths (C3) Flashcards on C3 Functions, created by Maisie Carroll on 26/02/2017.
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- Maisie Carroll
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