If ​f(x)=int(2x​), ​find: ​(a) ​f(1.3​) ​ (b) ​f(3.4​) ​ (c) ​f(negative 2.1​)

Answer 1

If by f(x) = int(2x) you mean the greatest integer that is less than or equal to 2x, then:

f(1.3) = int(2.6) = 2

f(3.4) = int(6.8) = 6

f(-2.1) = int(-4.2) = -5

Answer 2

int(-4.2)............................................