Answer:
Domain : ( -∞ , ∞ ) ; range ( -∞ , ∞ ]
Step-by-step explanation:
Given : y=-3x².
To find : Identify the domain and range .
Solution : We have given that y = -3x².
Domain : the domain of the function is the set of input values for which function is defined .
So, the function is defined for all real values .
Notation : ( -∞ , ∞ )
Range : The set of values of dependent variable for which function is defined .
Range for quadratic function is always less than or equal to 0 .
Notation : ( -∞ , ∞ ]
Therefore , Domain : ( -∞ , ∞ ) ; range ( -∞ , ∞ ]
