Algebra 3.2 Maps, Tables and Graphs
Name _________________________
Learning Objective: F.IF.1
I will create a map, table, and graph of a function from a relation
I will determine if a relation, map, table, or graph is a function
I will determine if a sequence is a function
I will determine the domain and range of a function in any form
I will recognize a sequence is a function
I will find the domain from a graphed function, a relation, or a mapping
F.IF.1
F.IF.1
F.IF.1
F.IF.3
F.IF.5
Are the following graph functions?
1.
2.
Function?
3. .
Function?
4.
Function?
Function?
Express each relation as a set of ordered pairs. Then find the domain and range and determine if the
following graphs are functions.
5.
6.
{(–4, 2) (5, 2) (4, 6) (6, 5)}
Ordered pairs:
Domain:
Domain:
Range:
Range:
Function:
Function:
Express each relation as a set of ordered pairs. Then find the domain and range and determine if the
following graphs are functions.
7.
x
4
–
1
0
1
y
–
5
–
10
–
9
–
7
8.
Ordered pairs:
Ordered pairs:
Domain:
Domain:
Range:
Range:
Function:
Function:
9. Name the ordered pair at point B
and explain what it represents.
10. Name the ordered pair at point C
and explain what it represents.
Express each relation as a graph, a mapping, and a table. Then state the domain and range and
determine whether it is a function.
11. {(5, 2) (5, 6) (3, –2) (0, –2)}
Domain:
x
y
x
Range:
Function?
12. {(–1, 3) (3, –6) (–1, –8) (–3, – 7)}
x
Domain:
y
Range:
Answers: 1) no 3) no 5) {(–1, 2)( 0, 3)( 3, 2)(3, –2), {–1, 0, 3}, {2, 3, –2}, no
7) {(4, –5)( –1, –10)( 0, –9)(1, – 7), {4, –1, 0, 1},{–5, –10, –9, – 7}, yes
9) (5, 25) Walking 5 dogs will earn you $25.
11) D: {5, 3, 0} R: {2, 6, –2} no
Function?
y