Question

What is the domain of the function f(x) = (x + 3)2? A) all integers B) all real numbers C) all integers greater than zero D) all real numbers greater than zero

Answer 1

Option B is correct

Explanation:

We have function f(x)=(x+3)2

The domain of the function is the set of values for which the function is defined and real.

In our case if x belong to all real numbers the function will be real and defined as given in Option B as function has no undefined points.

All other options are subset of real numbers.

So, option B is correct.