Algebra-1

Question Analysis
This question tests the student's ability to recognize and apply the formula for the slope of a line. The student needs to identify the correct value for the x-coordinate in the denominator of the slope formula.

Key Concept Explanation
The slope of a line passing through two points and is given by . This formula measures the rate of change of the y-coordinates with respect to the x-coordinates.

Step-by-step Solution
1. Identify the coordinates:

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