什么是垂线?
- 你应该已经知道平行线有平等的梯度
- 垂线确实相交,在它们相交的地方,两条线形成一个直角——即它们相交于90°
垂直梯度(和直线)是怎么回事?
- 在你开始尝试使用垂直梯度和直线之前,确保你理解了如何找到直线的方程——这将有助于你解决你将遇到的各种问题
- 梯度米1而且米2垂直于米1×m2= 1
- 我们可以用米2= -1 ÷ m1求一个垂直梯度
另一种描述方法是说垂线的梯度是负倒数
- 例如;
" class="Wirisformula" role="math" alt="1" style="vertical-align:-6px;height:22px;width:10px" loading="lazy">而且1 {"language":"en","fontFamily":"Times New Roman","fontSize":"18","autoformat":true} " class="Wirisformula" role="math" alt="- 1" style="vertical-align:-6px;height:22px;width:23px" loading="lazy">- 1 {"language":"en","fontFamily":"Times New Roman","fontSize":"18","autoformat":true} " class="Wirisformula" role="math" alt="1/3" style="vertical-align:-17px;height:47px;width:18px" loading="lazy">而且1 3 {"language":"en","fontFamily":"Times New Roman","fontSize":"18","autoformat":true} " class="Wirisformula" role="math" alt="- 3" style="vertical-align:-6px;height:22px;width:23px" loading="lazy">- 3 {"language":"en","fontFamily":"Times New Roman","fontSize":"18","autoformat":true} " class="Wirisformula" role="math" alt="2 / 3" style="vertical-align:-17px;height:47px;width:18px" loading="lazy">而且2 3 {"language":"en","fontFamily":"Times New Roman","fontSize":"18","autoformat":true} " class="Wirisformula" role="math" alt="- 3 / 2" style="vertical-align:-17px;height:47px;width:31px" loading="lazy">- 3 2 {"language":"en","fontFamily":"Times New Roman","fontSize":"18","autoformat":true}
- 例如;
- 如果有疑问,就画草图吧!