1. Based on the definition of a function, are the following relations functions? Why or why not?
У
b. {(2,3), (2,4), (2,5),(2,6), (2.7)}
у
||
X
4
2
1.1
3
7
3
1.2
4
10
4
1.3
5
13
3
a.
1.2
6
d.
{(3,4), (-3, 4), (6,2), (-3, 1);
a.
f. {(1,-2).(-2,-2), (3,-2), (4, -2)}
e.
h. {(2,3), (4,5), (5,7). (8,9)}
i.
g