Functions Review

Front

What are all of the y values or outputs in a function called?

Back

Range

Front

Is the set of ordered pairs {(1, 2), (2, 3), (3, 4)} a function or not a function?

Back

Function

Front

Is the mapping {(1, 2), (1, 3)} a function or not a function?

Back

Not a Function

Front

Given g(x) = 4x - 7, find g(-9).

Back

g(-9) = -43

Front

Which of the following is a function: {(1, 2), (2, 3), (3, 4)}, {(1, 2), (1, 3)}, {(2, 2), (2, 3)}?

Back

{(1, 2), (2, 3), (3, 4)} is a function.

Front

What is the definition of a function?

Back

A function is a relation that assigns exactly one output for each input.

Front

What is the domain of a function?

Back

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

Front

What is the range of a function?

Back

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

Front

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

Back

A one-to-one function means that each output is paired with exactly one input.

Front

What is a vertical line test?

Back

A method to determine if a relation is a function by checking if any vertical line intersects the graph more than once.