8.EE.6 Checkpoint 2.3

Front

What is the definition of a function?

Back

A function is a relation where every input has only ONE output.

Front

What does it mean for a mapping to be a function?

Back

A mapping is a function if each input corresponds to exactly one output.

Front

What is the vertical line test?

Back

The vertical line test is 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

What is an example of a relation that is not a function?

Back

The relation {(4,5), (4,-7), (4,2), (4,0), (4,9)} is not a function because the input 4 has multiple outputs.

Front

Which of the following is a function? (3, 5), (4, 9), (2, 5)

Back

Adding (1, 9) creates a function because it does not repeat any x-values.

Front

What is an ordered pair?

Back

An ordered pair is a pair of numbers used to locate a point on a graph, written as (x, y).

Front

Can a function have the same output for different inputs?

Back

Yes, a function can have the same output for different inputs, as long as each input has only one output.

Front

What is the domain of a function?

Back

The domain is the set of all possible input values (x-values) for a function.

Front

What is the range of a function?

Back

The range is the set of all possible output values (y-values) for a function.

Front

What does it mean for a function to be linear?

Back

A linear function is a function that graphs to a straight line, represented by the equation y = mx + b.