Find the Domain f(x)=-x^2

Problem

ƒ(x)=−x2

Solution

1. Identify the type of function. The expression ƒ(x)=−x2 is a polynomial function, specifically a quadratic function.

2. Determine if there are any restrictions on the input variable x Polynomials do not contain denominators that could be zero or square roots of negative numbers.

3. Conclude that the function is defined for all real numbers because any real number can be squared and multiplied by −1

4. Express the domain in interval notation, which represents the set of all real numbers from negative infinity to positive infinity.

Final Answer

Domain: *(−∞,∞)

Want more problems? Check here!