9/14/23 - A.2(A) Domain and Range

Front

Back

Less than or equal to (Closed, solid circle on a number line)

Front

Back

Less than (Open circle on a number line)

Front

What is the domain of the function represented by the graph with x-values {-5, -4, -3, -1}?

Back

The domain is {-5, -4, -3, -1}.

Front

Back

Greater than or equal to (Closed, solid circle on a number line)

Front

What does the term 'domain' refer to in a function?

Back

The set of all possible x-values (inputs) for the function.

Front

What does the term 'range' refer to in a function?

Back

The set of all possible y-values (outputs) for the function.

Front

How do you represent an open interval in interval notation?

Back

Using parentheses, e.g., (a, b) means a < x < b.

Front

How do you represent a closed interval in interval notation?

Back

Using brackets, e.g., [a, b] means a ≤ x ≤ b.

Front

What is the difference between an open circle and a closed circle on a number line?

Back

Open circle means the endpoint is not included; closed circle means it is included.

Front

If a function has a domain of all real numbers, how is it represented?

Back

It is represented as (-∞, ∞) in interval notation.