Functions and Relations- A.7

Front

What is the definition of a function?

Back

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

Front

For the function {(0,1), (1,-3), (2,-4), (-4,1)}, write the domain and range.

Back

Domain: {-4, 0, 1, 2}; Range: {-4, -3, 1}

Front

What are the zero(s) of the function given?

Back

The zero(s) of the function are -1 and 3.

Front

Which of the following is also indicative of the zero of a function?

Back

x-intercept(s)

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 is a function where each output is produced by exactly one input.

Front

What is an x-intercept?

Back

An x-intercept is a point where the graph of a function crosses the x-axis (y=0).

Front

What is a y-intercept?

Back

A y-intercept is a point where the graph of a function crosses the y-axis (x=0).

Front

How do you find the zeros of a function algebraically?

Back

To find the zeros, set the function equal to zero and solve for x.