Algebra-2

Question Analysis
This question tests the student's ability to write the equation of a direct variation function given a point on the graph.

Key Concept Explanation
The equation of a direct variation function is . To find the equation, first determine the constant of variation using the coordinates of a point on the line, then substitute into the equation.

Step-by-step Solution
1. Identify the coordinates of the given point: .
2. Use the formula for the constant of variation: .
3. Substitute the values:

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