# Week 1 SYMKC Flashcards

the set of all input values (independent, x-values) of a relation or function

domain

the set of all output values (dependent, y-values) of a relation or function

range

A function or relation has _______ domain and range if its values are unbroken over a part of the graph.

continuous

A function has __________ domain and range if its values are not connected.

discrete

Write domain and range from ____________.

least to greatest (left to right or bottom to top when looking at a graph)

Discrete or Continuous?

Continuous

Discrete or Continuous?

Discrete

Discrete or Continuous?

Continuous

In interval notation, use _____ to indicate < or > (exclusive). Also, use these symbols around ∞ or -∞

parentheses ( )

In interval notation, use _________ to indicate ≤ or ≥ (inclusive)

square brackets []

Symbol used for **All Real Numbers**

(any number that is not imaginary)

R

Symbol used for **Rational Numbers**

Q

Symbol used for the **Integers**

Z

Symbol used for the **whole numbers**

W

Symbol used for the **Natural Numbers**

N

Symbol used for the **Irrational Numbers**

P

Symbol used for a **Complex Number**

C

Symbol used for an **imaginary number**

*i*