Question

The step function f(x) is graphed. What is the value of f(0)? -2 -1 0 1

Answer 1

An open circle on a number means that it does not encompass that number, while a closed circle does. Since the closed circle at x=0 is at y=-2, our answer is -2

Answer 2

Answer:  -2 is the correct answer

Explanation:

This is the graph for greatest integer function  by looking at the graph we can clearly conclude that  f at zero is giving the value -2

Greatest integer function gives the value that is less than or equal to the value taken inside the function

For example if we have 2.09  and is operating under greatest integer function the value comes out to be 2  because it will convert the decimal value in integer

denoted as [2.09]=2