Practice Worksheet: Relations & Functions | PDF - Free Printable

1] Table: x | y
-2 | -1
2 | 1
-1 | -2
1 | 2
Graph: Plot points (-2,-1), (2,1), (-1,-2), (1,2)
Mapping Diagram: Left oval: -2, 2, -1, 1; Right oval: -1, 1, -2, 2; Arrows: -2→-1, 2→1, -1→-2, 1→2
Function? Yes

2] Set of ordered pairs: {(1,-2), (-3,-1), (1,0), (2,2), (0,3)}
Graph: Plot points (1,-2), (-3,-1), (1,0), (2,2), (0,3)
Mapping Diagram: Left oval: 1, -3, 2, 0; Right oval: -2, -1, 0, 2, 3; Arrows: 1→-2, 1→0, -3→-1, 2→2, 0→3
Function? No

3] Set of ordered pairs: {(-2,2), (-1,1), (0,0), (1,1), (2,-2)}
Table: x | y
-2 | 2
-1 | 1
0 | 0
1 | 1
2 | -2
Mapping Diagram: Left oval: -2, -1, 0, 1, 2; Right oval: 2, 1, 0, -2; Arrows: -2→2, -1→1, 0→0, 1→1, 2→-2
Function? Yes

4] Set of ordered pairs: {(-1,-2), (1,-1), (2,0), (3,2)}
Table: x | y
-1 | -2
1 | -1
2 | 0
3 | 2
Graph: Plot points (-1,-2), (1,-1), (2,0), (3,2)
Function? Yes

5] Domain: [-2, 2]
Range: [-2, 1]
Function? Yes

6] Domain: [-2, 2]
Range: [-2, 2]
Function? No

7] Domain: (-2, 2)
Range: [-4, 1)
Function? Yes