Functions Review

Front

Is the relationship in the table linear? Why or why not?

Back

Yes, it has a constant change.

Front

Which set of values is a function? (9,5) (10,5) (9,-5) (10,-5), (3,4) (4,-3) (7,4) (3, 8), (6,-5) (7, -3) (8, -1) (9, 1), (2, -2) (5, 9) (5, -7) (1, 4)

Back

(6,-5) (7, -3) (8, -1) (9, 1)

Front

What is the definition of a function?

Back

Every input has only ONE output.

Front

Which student is not correct about determining if a relation is a function?

Back

Matthew said, 'In a mapping diagram you could use the vertical line test and if the line intercepts only once, it is a function.'

Front

Does the relationship in the table represent a function?

Back

Yes, the relationship is a function because every minute has a unique temperature.

Front

What is a function?

Back

A relation where each input has exactly one output.

Front

What is the vertical line test?

Back

A method to determine if a graph represents a function; if a vertical line crosses the graph more than once, it is not a function.

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 an example of a function?

Back

f(x) = 2x + 3 is a function because each x has one corresponding y.

Front

What is a non-function?

Back

A relation where at least one input has more than one output.