Download x y 11 -2 12 -2 13 -2 14 -2 15 -2 x y -3 5 -2 4 5

Functions Review
Name______________________
Determine whether each of the following is a function. Then identify the domain and range.
1.
4.
x
11
12
13
14
15
y
-2
-2
-2
-2
-2
2.
5.
3.
6. {(−3,5), (2,7), (4,5), (2, −4), (7,2)}
7. Draw a mapping for the given table. Is it a function? Identify the inverse. Is it a function?
x
-3
-2
5
6
7
y
5
4
-1
4
5
8. Determine whether the following mapping is a function.
Express the mapping as a relation. Write the inverse as a
mapping.
9. Evaluate the following three functions.
( )
( )=−
( )
( )
( )=
+
I.
(2)
VI. ℎ
II.
(2)
VII. Find
when ℎ( ) = 9
III. ℎ(2) − ℎ(15)
VIII. Find
when ( ) = 9
IV. ℎ(3) + (−8)
IX. Find
when ( ) = −2
X. Find
when ( ) = −1
(−1)
V.
(−1)
Write the equation for the linear function of the given tables.
10.
11.
input output
0
1
2
3
4
4
7
10
Δ
input output
0
1
2
3
4
-4.8
-4.9
-5
-5.1
Δ
−
12.
input output
0
1
2
3
4
-22
-33
-44
Δ