Algebra-1

Question Analysis
This question tests the student's understanding of the slope of a horizontal line. The key is to recognize that the y-coordinates of the points are the same, indicating a zero slope.

Key Concept Explanation
A horizontal line has a zero slope because the y-coordinate does not change as the x-coordinate changes.

Step-by-step Solution
1. Identify the given points (8, 2) and (12, 2).
2. Use the slope formula: .
3. Substitute the points:

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