Algebra-2

Question Analysis
This question tests the student's understanding of the concept of undefined slope, which occurs when the line is vertical. The formula for the slope is .

Key Concept Explanation
The slope of a line is the ratio of the vertical change (rise) to the horizontal change (run) between two points on the line. If the horizontal change is zero, the slope is undefined.

Step-by-step Solution
1. Identify the coordinates of the two points: and

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