Question

Which equation matches the graph of the greatest integer function given below ?

Answer 1

Greatest integer function: y = [[x]]

Any value between 0 and 0.999999.... of the input variable x produces an output of 0. 0 is the greatest integer contained in [[x]] on that interval.

However, if we reach x=1, the greatest integer contained in the interval [1,2) is 1.
Likewise, the greatest integer contained in the interval [2,3) is 2.

And so on.

For illustrations, please look up "greatest integer function" on the Internet.

This will confirm your answer choice.