how do i evaluate the function: f(x)=[[3x-1]] when f(2.5)? (this is a greatest integer function)?

Question

how do you find what the greatest integer is?

Answer 1

Do your own homework

Answer 2

f(2.5) = [ 3(2.5) - 1]
f(2.5) = [ 7.5 - 1]
f(2.5) = [ 6.5 ]
f(2.5) = 6