Download Chapter 8.1 vocabulary

Chapter 8.1 vocabulary
Relation
Is a pairing of
numbers or a set of
ordered pair
{(2,1) (3,5) (6, 3)}
Domain:
first set of
numbers
Input:
Each number in
the domain
Range:
Second set of
numbers
Output:
Each number in
the range
X value
Y Value
Objective 1: identifying the domain and range
Identify the domain and range of the relation
give to the left:
Domain:
Range:
Objective 1: identifying the domain and range
Identify the domain and range of the relation
give to the left:
Domain:
Range:
Identifying domain and range in a set of
ordered pair
[(1,5) (3,8) (5,11) (8,13)]
Identify domain and range:
Domain
Range
Identifying domain and range in a set of
ordered pair
[(3,6) (5,13) (6,13) (9,15)]
Identify domain and range:
Domain
Range
Objective 2: represent a relation
• Represent the relation in a graph and in a mapping diagram:
[(-1,1) (2,0) (3,1) (4,5)]
X values
y values
Objective 2: represent a relation
• Represent the relation in a graph and in a mapping diagram:
[(-2,5) (1,2) (3,5) (5,7)]
X values
y values
Objective 3: determining if a relation is a
function using a mapping diagram
• Function: is when you have a RELATION that has ONE output for every
input.
[(3,6) (2,8) (4,9) (5,9)]
[(2,1) (4,2) (3,3) (2,5)]
[(4,7) (5,6) (8,9) (5,9)]
Determine whether the following are
functions
[(2,5) (5,7) (7,7) (9,8)]
[(4,6) (5,8) (7,9) (4,8)]
Determining if a relation is a function using
the vertical line test
Is this a function:
Is this a function?
Is this a function?
Practice
• What is my domain and range?
1.) [(9,3)(3,4)(5,8)(2,1)]
3.) Is this a function?
[(3, -2), (8, 1), (9, 2), (3, 3), (-4, 0)]
2.)
Age
Height
(Years)
18
20
21
14
18
(meters)
4.25
4.40
5.25
5.00
4.85
Homework
• Page 387
#’s 2-20 evens