Algebra-1

Question Analysis
This question tests the student's ability to identify the correct y-coordinate in the slope formula. The student must recognize that the y-coordinate of the second point (9) should be used in the numerator.

Key Concept Explanation
The slope formula is used to find the slope of a line passing through two points. The y-coordinates of the points are crucial in this calculation.

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

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