Functions- Review

Front

What is a function?

Back

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

Front

What is the definition of 'Not a Function'?

Back

A relation is not a function if at least one input is associated with more than one output.

Front

How can you determine if a mapping is a function?

Back

Check if each input has only one output.

Front

What does the vertical line test determine?

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

What is f(2) if f(x) = 2x + 1?

Back

f(2) = 5.

Front

What is f(2) if f(x) = x^2 - 4?

Back

f(2) = 0.

Front

What is the output of f(2) if f(x) = 4x - 4?

Back

f(2) = 4.

Front

What is the output of f(2) if f(x) = x + 3?

Back

f(2) = 5.

Front

What is the definition of a relation in mathematics?

Back

A relation is a set of ordered pairs, where each pair consists of an input and an output.

Front

What is an example of a function?

Back

An example of a function is f(x) = x + 2.