P- Ch2 Functions & Graphs Flashcards
1
Q
What is mapping?
A
maps 1 set of no. to another
2
Q
What is a function?
A
- a mapping
- every element of domain mapped to exactly 1 element of the range
3
Q
Explain the terms domain and range.
A
- domain- set of poss. inputs
- range- set of poss. outputs
4
Q
Why must an inverse function be one-to-one?
A
- if mapping was many-to-one,
- inverse mapping would be one-to-many
- x exist
5
Q
A
