Is This a Function?

Front

Is it a function?

Back

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

Front

Is this table a function or not a function?

Back

Not a Function, because at least one input has multiple outputs.

Front

Is this mapping a function or not a function?

Back

Not a Function, because at least one input has multiple outputs.

Front

What is the definition of function?

Back

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

Front

Is this table a function or not a function?

Back

Not a Function, because at least one input has multiple outputs.

Front

What is an example of a function?

Back

An example of a function is f(x) = 2x, where each x has a unique output.

Front

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

Back

An example is {(1, 2), (1, 3)}, where the input 1 has two different outputs.

Front

What is the vertical line test?

Back

The vertical line test determines 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, 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 the function.