Question

The area (A) of a circle is a function of its radius (r) and is given by the function A = f(r) = πr2. What is the domain of this function?

A. all positive real numbers
B. all real numbers
C. all positive real numbers including 0
D. all real numbers excluding fractions

Answer 1

It would be C hope that helps

Answer 2

c.all positive real numbers including 0