Front

What is a function?

Back

A function is a relation between a set of inputs and a set of possible outputs where each input is related to exactly one output.

Front

What is the vertical line test?

Back

The vertical line test is a method used to determine if a curve is a function. If a vertical line intersects the curve at more than one point, then the curve is not a function.

Front

If a vertical line intersects a graph at one point, what does that indicate?

Back

It indicates that the graph represents a function.

Front

Can a function have multiple outputs for a single input?

Back

No, a function cannot have multiple outputs for a single input.

Front

What is the domain of a function?

Back

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

Front

What is the range of a function?

Back

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

Front

Give an example of a function.

Back

An example of a function is f(x) = 2x + 3, where for each value of x, there is exactly one corresponding value of f(x).

Front

Give an example of a relation that is not a function.

Back

An example of a relation that is not a function is y^2 = x, because for some values of x, there are two corresponding values of y.

Front

What does it mean if a graph fails the vertical line test?

Back

If a graph fails the vertical line test, it means that it is not a function because there are inputs that produce multiple outputs.

Front

What is a one-to-one function?

Back

A one-to-one function is a function where each output is related to exactly one input, meaning no two different inputs produce the same output.