precalculus
What is the domain of the function shown by the
diagram?
a
x
b
y
c
{a,b,c}
Which of the following is/are true about function?
A. A function is composed of two
quantities where one depends
on the other.
B. One-to-one correspondence is a
function.
C. One-to-many correspondence is
a function.
D. Many-to-one correspondence is
a function.
A,B,D
Look at the diagram. The range of
that relation is…
a
b
c
x
y
z
{x,y,z}
Known that a paired number set
{(2,1),(4,2),(a,3)}, a suitable value of a for that
relation to be function is…
6
FUNCTION or NOT FUNCTION
FUNCTION
FUNCTION or NOT FUNCTION
NOT FUNCTION
FUNCTION or NOT FUNCTION
NOT FUNCTION
FUNCTION or NOT FUNCTION
FUNCTION
FUNCTION or NOT FUNCTION
FUNCTION
FUNCTION or NOT FUNCTION
NOT
FUNCTION
FUNCTION or NOT FUNCTION
NOT
FUNCTION
FUNCTION or NOT FUNCTION
NOT
FUNCTION
Determine if the following relations are
FUNCTIONS. Then state the domain and range
a, 1 , b, 2 , c, 3 , d, 4
𝑑𝑜𝑚𝑎𝑖𝑛
𝑎, 𝑏, 𝑐, 𝑑
𝑟𝑎𝑛𝑔𝑒
1,2,3,4
𝑭𝑼𝑵𝑪𝑻𝑰𝑶𝑵
Determine if the following relations are
FUNCTIONS. Then state the domain and range
3,4 , 4,2 , 5,0 , 4, −2
𝑑𝑜𝑚𝑎𝑖𝑛
3,4,5,4
𝑟𝑎𝑛𝑔𝑒
4,2,0, −2
NOT 𝑭𝑼𝑵𝑪𝑻𝑰𝑶𝑵
Determine if the following relations are
FUNCTIONS. Then state the domain and range
3,4 , 4,2 , 5,0 , 4, −2
𝑑𝑜𝑚𝑎𝑖𝑛
3,4,5,4
𝑟𝑎𝑛𝑔𝑒
4,2,0, −2
NOT 𝑭𝑼𝑵𝑪𝑻𝑰𝑶𝑵
Write each of the following as a relation, state the domain
and range, then determine if it is a function.
𝑟𝑒𝑙𝑎𝑡𝑖𝑜𝑛
−𝟐, −𝟐 , −𝟐, −𝟒 , −𝟏, 𝟏 , 𝟏, −𝟐
𝑑𝑜𝑚𝑎𝑖𝑛 −2, −1,1
𝑟𝑎𝑛𝑔𝑒 −2, −4,1,
NOT 𝑭𝑼𝑵𝑪𝑻𝑰𝑶𝑵
Express the following relations as mapping, state the
domain and range, then determine if it is a function.
−𝟐, −𝟏 , 𝟎, 𝟑 , 𝟓, 𝟒 , −𝟐, 𝟑
𝑑𝑜𝑚𝑎𝑖𝑛
−2,0,5,
𝑟𝑎𝑛𝑔𝑒 −1,3,4,
NOT 𝑭𝑼𝑵𝑪𝑻𝑰𝑶𝑵
Express the following relations as mapping, state the
domain and range, then determine if it is a function.
−𝟏, 𝟓 , 𝟎, 𝟑 , 𝟐, 𝟑 , 𝟑, 𝟏
𝑑𝑜𝑚𝑎𝑖𝑛
−1,0,2,3
𝑟𝑎𝑛𝑔𝑒 5,3,1
𝑭𝑼𝑵𝑪𝑻𝑰𝑶𝑵