f:
A
- Relations and Mapping
- Ordered Pair
- Cartesian Product of Two Sets
- Relation in Math
- Domain and Range of a Relation
- Practice Test on Math Relation
- Domain Co-domain and Range of Function
- Math Practice Test on Functions
Introduction to Mapping or Function
B
and
x
For f to be Mapping from A to B
A
and
y
B
then
y
is
called
the
image
of
● Set A and Set B should be non-empty.
● Every element of Set A should have an image in Set B.
● No Element in Set A should have more than one image in Set B.
● Two or more elements of Set A can have the same image in Set B.
● f: x → y means that under the function of ‘f’ from A to B, an element x in Set A has image y in Set B.
● It is necessary that every f image is in Set B but there may be some elements in Set B that are not f images of any elements of Set A.
element
of
Example:
A
