Algebra-1

Question Analysis
This question tests the basic definition and graphical representation of a step function.

Key Concept Explanation
A step function is characterized by its constant values within intervals, which appear as horizontal line segments (steps) on a graph.

Step-by-step Solution
1. Recall the definition of a step function: it is a piecewise constant function.
2. The graph of a step function consists of horizontal line segments, ...