The step function f(x) is graphed.
What is the value of f(1)?
0
1
2
4

At x =1 , f(1) = 1 , Option B is the correct answer.
A step function is a piece wise function , which has constant value for all given intervals.
It is given in the question to determine the value of function at x = 1 , from the attached diagram.
At x =1 , f(1) = 1 (from figure)
Therefore Option B is the correct answer.
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