Answer
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Step 1I'll solve this step by step, following the LaTeX formatting guidelines precisely:
Step 2: Understand the definition of direct variation
A direct variation is a linear relationship where the graph passes through the origin (0, 0), and can be represented by the equation $$y = kx$$, where $$k$$ is a constant (called the constant of variation).
Final Answer
Yes, y = - 3x represents a direct variation with a constant of variation of - 3.
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