Functions Flashcards
1
Q
Definition of a function?
A
Many - to - one OR one - to - one
2
Q
What is the domain?
A
Allowed input (x) values
3
Q
What is range?
A
Allowed output (y) values
4
Q
How do you execute composite functions (fg(x))
A
Work from the inside out, find g(x) first then sub into f(x)
5
Q
How to find domain and range for inverse functions?
A
Domain becomes range, range becomes domain
6
Q
Graphically, what is an inverse function?
A
Function reflected in line y = x
7
Q
How do you find an inverse function?
A
Rearrange to make x the subject, rewrite with x in place of y and y in place of x
