选择直线 --- 介绍 ---

在坐标平面中有四种方法描述一般的直线(不通过原点, 不垂直也不水平): 用一个隐式方程; 把 y 表示成 x 的函数的方程; 把 x 表示成 y 的函数的方程; 或一个参数方程组。

这个练习给你一个训练的机会,去熟悉直线的不同的描述以及直线的图形。
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  • 将给出 其中 .
  • 最好的解答。一组练习将由 每一组完成后会有得分。..
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