Topic: Relations and Functions
A. Tell whether the following relations are function
or not. Write F if the relation is a function, write N if
it is not
1. {(1, 0), (2, 1), (3, 2), (2, 3), (1.4)
2.
0
5
2
4
3.
-2
-1
0
1
1
2
у
5
2
0
2
5
4, y = 2x + 8
5. x2 + y2 = 25
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