U5L12-L13 Domain and Range

Front

What is the definition of 'Domain' in 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 definition of 'Range' in a function?

Back

The range of a function is the set of all possible output values (y-values) that the function can produce.

Front

Identify the domain of the function f(x) = 2x + 3.

Back

The domain is all real numbers.

Front

Identify the range of the function f(x) = x^2.

Back

The range is all real numbers greater than or equal to 0.

Front

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

Back

The domain is all real numbers except x = 0.

Front

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

Back

The range is all real numbers.

Front

If the domain is {1, 2, 3}, what is the range of f(x) = x + 1?

Back

The range is {2, 3, 4}.

Front

What does it mean if a function has a restricted domain?

Back

It means that not all input values are allowed for the function.

Front

What is the range of the function f(x) = 3x - 5 when the domain is {0, 1, 2}?

Back

The range is {-5, -2, 1}.

Front

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

Back

Look at the y-values that the graph covers.