The budget constraint is a straight line through this point with a slope of.
这个预算限制在这幅图上是一条，是一条经过该点并以为斜率的直线。
The slope of secant drawn from the origin through the point is the average function.
从原点出发并连接该点所构成的割线的斜率即为曲线的平均函数。
The slope of secant drawn from the origin through the point is the average function.
从原点出发并连接该点所构成的割线的斜率即为曲线的平均函数。
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