Algebra-2

Question Analysis
This question evaluates the student's ability to determine the constant of variation from given points on a direct variation graph, specifically when the constant of variation is negative.

Key Concept Explanation
In a direct variation, the relationship between two variables and can be expressed as , where is the constant of variation. The constant of variation can be found by using the coordinates of any point on the line, except the origin.

Step-by-step Solution
1. Identify the given points: and .
2. Use the formula for the constant of variation:

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