Functions Vocab

Front

What is the domain in a function?

Back

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

Front

What is the range in a function?

Back

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

Front

True or False: The domain is also known as the input.

Back

True

Front

True or False: The range is also known as the output.

Back

True

Front

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

Back

Each input must have 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 intersects the graph at more than one point, it is not a function.

Front

What is a mapping in the context of functions?

Back

A mapping shows how each element of the domain is paired with an element of the range.

Front

What is a function table?

Back

A table that displays pairs of input and output values for a function.

Front

What is an example of a non-linear function?

Back

y = x^2 is a non-linear function because it does not form a straight line when graphed.

Front

What is the difference between a relation and a function?

Back

A relation can have multiple outputs for a single input, while a function cannot.