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6-85.

What do you notice about the area under from 1 to any positive number as it relates to the natural logarithm? Why was the area negative for part (d) above? Homework Help ✎

As x increases, the area increases as well. So the area function is always increasing.
But, at the beginning area increases at a greater rate than at the end.

Problem 6-84 suggests that we examine the natural logarithm function, y = ln(x).

Why or why not?

Use the eTool below to visualize the problem.
Click the link at right for the full version of the eTool: Calc 6-85 HW eTool