![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
\
The two sets are ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=1c41394e29f9b79053a807992293830d.png\")
.
The set of ordered pairs is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=fe0ae5b832257e475175204bc48444ff.png\")
.
The set of ordered pairs is not a function from ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=e97559c5eceade6b530438ba2dc0c040.png\")
to ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=a703e43668ee94f789ca9f9df538f77b.png\")
.
Since the element "c" in A is corresponds two elements 2 and 3 in B. ![\"\"](\"/userfiles/image/steps_images/solution.JPG\")
No, the set of ordered pairs ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=fe0ae5b832257e475175204bc48444ff.png\")
is not a function from A to B.
The set of ordered pairs ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=4d18cf81c2b4be545d20e9e9c98d645f.png\")
is a function from to .
Since the each element in A is corresponds elements in B.
\
The set of ordered pairs is a function.
The set of ordered pairs ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=487116f47c1a2efff5c908e59ae91267.png\")
represents a function from to .
Since the each element in B is corresponds elements in A, The input elements are belongs to B.
The set is not a function from A to B.