Algebra 1
Functions & Relations, Domain & Range
Name____________________________
Practice
Tell whether each relation below is a function or not by writing “yes” or “no” on the blank.
Then state the domain and range.
1)
2)
3)
x
-2
-1
0
-1
2
Function?____________
y
8
7
6
5
4
Function?____________
Domain:____________________ Domain:___________________
Function?____________
Domain:___________________
Range:_____________________
Range:_____________________ Range:____________________
4)
5)
y = 4x – 1
Function?____________
6)
{ (4, 2), (2, 6), (6, 7), (7, 9) }
Function?____________
y = -2x
Function?____________
Domain:____________________ Domain:___________________
Domain:___________________
Range:_____________________
Range:___________________
Range:____________________
7)
8)
9)
x
-2
-1
0
1
2
y
6
2
0
2
6
-3
5
-6
9
2
2
Function?____________
Function?____________
Function?____________
Domain:___________________
Domain:___________________
Domain:___________________
Range:_____________________
Range:_____________________ Range:____________________
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