Question

What is the domain of the function f(x) = x2 + 3x + 5?

Answer 1

The domain is all real values of x

Answer 2

The domain of the function is all real numbers.

Explanation:

Domain is the set of input values.

If a quadratic function is defined as

`f(x)=ax^2+bx+c`

then the domain of the function is all real number.

The given function is

`f(x)=x^2+3x+5`

It is a quadratic function and the domain of a quadratic function is all real numbers because it is defined for all real values of x.

Therefore the domain of the function is all real numbers.