freeCodeCamp/guide/chinese/mathematics/the-vertex-of-a-parabola/index.md

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---
title: The Vertex of a Parabola
localeTitle: 抛物线的顶点
---
## 抛物线的顶点
抛物线的顶点是抛物线的最低点或最高点如果抛物线是颠倒的。这是斜率从正变为负反之亦然的点。对于给定的二次y = ax ^ 2 + bx + c通过计算h = -b / 2a并通过插入h来评估y来找到顶点hk
#### 更多信息: