Domain and Range

Front

What is the Domain?

Back

The set of all possible input values (x-values) for a function.

Front

What is the Range?

Back

The set of all possible output values (y-values) for a function.

Front

Identify the domain of the function: f(x) = x^2 for -3 ≤ x ≤ 3.

Back

{-3, -2, -1, 0, 1, 2, 3}

Front

Identify the range of the function: f(x) = x^2 for -3 ≤ x ≤ 3.

Back

{0, 1, 4, 9} (since the minimum value is 0 and maximum is 9).

Front

What is the domain of the set of ordered pairs: (2, 11), (9, -3), (7, 21), (-8, 6)?

Back

{2, 9, 7, -8}

Front

What is the range of the set of ordered pairs: (2, 11), (9, -3), (7, 21), (-8, 6)?

Back

{11, -3, 21, 6}

Front

How do you find the domain of a function from its graph?

Back

Look for the x-values that the graph covers; these values make up the domain.

Front

How do you find the range of a function from its graph?

Back

Look for the y-values that the graph covers; these values make up the range.

Front

What is the domain of the function f(x) = 1/(x-2)?

Back

All real numbers except x = 2.

Front

What is the range of the function f(x) = 1/(x-2)?

Back

All real numbers except y = 0.