Question

Find the domain of the relation

find the range of the relation
is the relation a function?

Answer 1

Domain: (-∞ , ∞)

Range: [4 , -∞)

yes, it's a function. It pass the vertical line test. (one input vs one output)

Explanation:

Domain: (-∞ , ∞)

Range: [4 , -∞)

yes, it's a function. It pass the vertical line test. (one input vs one output)