Respuesta :

Answer:

Domain: (-∞ , ∞)      

Range: [4 , -∞)

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

Step-by-step explanation:

Domain: (-∞ , ∞)      

Range: [4 , -∞)

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