Algebra-1

Question Analysis
This question tests the understanding of evaluating a step function at a specific point. The function is piecewise constant, and the value of the function depends on the interval in which the input lies.

Key Concept Explanation
A step function is a piecewise constant function, where the value remains constant within each interval and changes at certain points. To evaluate the function, determine which interval the input value falls into and use the corresponding constant value.

Step-by-step Solution
1. Identify the given step function:
2. Determine the interval for : Since

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