+206 Lana defines a function $f(x)$ which is given by the formula
f(x)=x2,
but only on a domain, she has specified which consists of finitely many values $x$; she leaves the function undefined for all other $x$.
Given that the range of $f(x)$ is $\{0,1,2,3,4,5,6,7,8,9\}$, what is the maximum number of points that could be in its domain?
+1223 Domain{0,1,√2,√3,2,√5.√6.√7,√8,3}
This is a total of 10 values.
