The equation that matches the graph of the greatest integer function is y = [x] - 2
<h3>How to determine the equation?</h3>
The parent function of an step function is represented as:
y = [x]
From the given graph, we can see that the lines are shifted 2 units down.
This means that:
(x,y) = (x,y - 2)
So, we have:
y = [x] - 2
Hence, the equation that matches the graph of the greatest integer function is y = [x] - 2
Read more about step function at:
brainly.com/question/4074174
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