And we can just extrapolate in a straight line We before saw some examples where I had an algorithm to generate points, and we fit a curve to it, used the curve to predict future points and discovered it was nowhere close.

我们可以干脆用一条直线来描述它,我们之前看到在一些例子中,我用一个算法去生成一些点，然后用一条曲线对它进行拟合，然后用这条曲线来预测未来的点,最后却发现结果完全不对。

麻省理工公开课 - 计算机科学及编程导论课程节选

I don't know how well you can see it in this figure here, is the slope of a straight line connecting these two points, and as the points come closer and closer, the straight line would become tangent to the curve.

我不清楚你们对于这个图像的理解,这条连接两点的斜线,随着两点距离逐渐缩小,两点连线会变成曲线的切线

耶鲁公开课 - 基础物理课程节选

As we know, this line here has twice the slope of the original line of the demand curve, so the slope of this thing is -2b.

我们都知道了,这条线的斜率,是需求曲线斜率的2倍,也就是说它的斜率是-2b

耶鲁公开课 - 博弈论课程节选