Domain and Range Staar EOC Algebra 1Practice

Front

What is the definition of Domain in a function?

Back

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

Front

What does it mean if a function's domain is all real numbers?

Back

It means that any real number can be used as an input for the function.

Front

If the domain of a function is D:{x ≥ -3}, what does this indicate?

Back

The function is defined for all x-values greater than or equal to -3.

Front

What does the notation -8 ≤ y ≤ 2 represent?

Back

It indicates that the range of the function includes all y-values from -8 to 2, inclusive.

Front

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

Back

Identify the x-values for which the graph exists; these values make up the domain.

Front

What is the significance of closed intervals in domain and range?

Back

Closed intervals indicate that the endpoints are included in the set of values.

Front

What is the significance of open intervals in domain and range?

Back

Open intervals indicate that the endpoints are not included in the set of values.

Front

If a function has a domain of D:{x < 5}, what does this mean?

Back

The function is defined for all x-values less than 5, but not including 5.

Front

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

Back

D:{x ≥ 3}, since the expression under the square root must be non-negative.