Question

Use the graph of the equation to answer the question.

What is the domain of the equation?

What is the range of the equation?

Answer 1

As per the graph, there is no restrictions for the domain but the range has a minimum value at y = - 4.

The domain is any real number:

• x ∈ ( - ∞, + ∞)

The range is any real number not less than - 4:

• y ∈ [ - 4, + ∞)