Consider the incomplete python implementation of the binary search algorithm:
1 2 3 4 5 6 7 8 9 10 

By which variable names should MISSING_VARIABLE1,MISSING_VARIABLE2,MISSING_VARIABLE3,MISSING_VARIABLE4
be replaced respectively?
Suppose we want to find the root of the function $f(x) = k$, where $k$ is a positive real number. For which $f$ is a binary search applicable?
Which of the following is false about the binary search algorithm?