Is it a Function?

Front

Are the following points a function? (-1,1), (-3,3), (0,0), (2,2)

Back

Yes

Front

Are the following points a function? (-4,-3), (-2,-3), (-1,-3), (2,-3)

Back

Yes

Front

Are the following points a function? (5,-1), (2,0), (2,2), (5,3)

Back

No

Front

Are the following points a function? (-3,3), (0,2), (1,1), (2,0)

Back

Yes

Front

Are the following points a function? (-2,-5), (-2,-1), (-2,1), (-2,3)

Back

No

Front

Are the following points a function? (0,2), (1,1), (2,2), (4,3)

Back

Yes

Front

Are the following points a function? (4,2), (3,3), (2,2), (0,3)

Back

Yes

Front

Are the following points a function? (-1,-1), (-2,-2), (3,-1), (3,2)

Back

No

Front

Are the following points a function? (2,-2), (0,-2), (-2,0), (1,-3)

Back

Yes

Front

Are the following points a function? (2,1), (3,2), (4,3), (5,-1)

Back

Yes