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ZX-9C197DC61B机考OG2 · 第 16 题
机考OG2 · 原库模块 2 · Q16 原库参考解析
Line p is defined by 2y + 18x =9. Line r is perpendicular to line p in the xy-plane. What is the slope of line r ?
参考答案：
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ONE QUESTION, ONE STEP
ZX-9C197DC61B机考OG2 · 原库模块 2 · Q16 原库参考解析
Line p is defined by 2y + 18x =9. Line r is perpendicular to line p in the xy-plane. What is the slope of line r ?
参考答案：
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