Functions (Part 1)

Front

What are all of the x values or inputs in a function called?

Back

Domain

Front

Is this graph a function or not a function? (Graph shows a vertical line)

Back

Not a Function

Front

Is this mapping a function or not a function? (Mapping shows multiple outputs for one input)

Back

Not a Function

Front

What is the domain and range of the following set of points: {(-4, -2), (-2, -2), (0, 1), (2, 1)}? Is it a function?

Back

D: {-4, -2, 0, 2}, R: {-2, 1}, Function

Front

Is this graph a function or not a function? (Graph shows a horizontal line)

Back

Function

Front

What is the definition of a function?

Back

A function is a relation where each input has exactly one output.

Front

What is the range of a function?

Back

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

Front

What is a relation in mathematics?

Back

A relation is a set of ordered pairs, which can include functions.

Front

How can you determine if a graph represents a function?

Back

Use the vertical line test: if a vertical line intersects the graph at more than one point, it is not a function.

Front

What does it mean for a function to be one-to-one?

Back

A one-to-one function is a function where each output is paired with exactly one input.