2425 Domain and Range Review

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

What does it mean if a function is not defined for certain x-values?

Back

It means those x-values are not included in the domain of the function.

Front

If a function has a domain of all real numbers, what does that imply?

Back

It implies that the function can accept any real number as an input.

Front

What is the domain of the function f(x) = 2x + 2?

Back

The domain is all real numbers.

Front

What is the range of the function f(x) = 2x + 2?

Back

The range is all real numbers.

Front

What is the domain of the function f(x) = 1/(x-3)?

Back

The domain is all real numbers except x = 3.

Front

How do you find the range of a linear function?

Back

For a linear function, the range is typically all real numbers unless restricted by the context.

Front

What is the domain of the function f(x) = sqrt(x)?

Back

The domain is x >= 0.

Front

What is the range of the function f(x) = sqrt(x)?

Back

The range is y >= 0.