meili 发表于 2022-10-27 15:46:26

抛物线x2=4y在点(2,1)处的切线的纵截距为()A.-1B.1C.12D.-12

<p>问题:抛物线x2=4y在点(2,1)处的切线的纵截距为()A.-1B.1C.12D.-12
<p>答案:↓↓↓<p class="nav-title mt10" style="border-top:1px solid #ccc;padding-top: 10px;">刘滨的回答:<div class="content-b">网友采纳  ∵抛物线x2=4y,∴y
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