if f(x) = 2 [[x]] find f(-1/4)

Question

A) -2

B) -1/2

C) 0

D) 1/2

Answer 1

If the greatest integer function is meant here, then we need the the greatest integer that is less than -1/4. That integer is -1.

2[[-1/4]] = 2 (-1) = 2.