source : 0calc.com

## View question – Which graph represents the function on the interval [−3, 3]?

This is a floor function graph

For any x, floor (x) is defined as the greatest integer less than or equal to x

For example, let x = 3 ….so….

floor (3) = 3

So

floor(3) – 3 = 0

And let x = 2.5 …..so….

floor (2.5) = 2

So

floor (2.5) – 3 = 2 – 3 = -1

The last graph is correct

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