Question

If f(x) = int(x/2), find

A. f(1.2)
B. f(1.6)
C. f(-1.8)

Answer 1

x is just a place holder. You can replace it with whatever you want
f(1.2) = int(1.2/2) = int(0,6) = 0

If by "int" you mean the integer part
This is different from floor or ceil.