Identifying Functions from Tables and Points

Front

Is the relation (6,-5) (7, -3) (8, -1) (9, 1) a function?

Back

Function

Front

What is the definition of a function?

Back

Every input has only ONE output.

Front

Is the relation (1,5), (1,6), (1,7), (1,8), (1,9) a function?

Back

Not a function.

Front

Is the relation (2,3), (3,4), (4,5) a function?

Back

Function.

Front

Is the relation (1,2), (2,2), (3,2) a function?

Back

Function.

Front

Is the relation (1,1), (1,2), (1,3) a function?

Back

Not a function.

Front

What is a key characteristic of a function?

Back

Each input (x-value) must correspond to exactly one output (y-value).

Front

Can a function have the same output for different inputs?

Back

Yes, a function can have the same output for different inputs.

Front

What is the vertical line test?

Back

If a vertical line intersects a graph at more than one point, the relation is not a function.

Front

Is the relation (0,0), (1,1), (2,2) a function?

Back

Function.