Find x and y of critical pt

2010-04-02 7:27 pm
For any constant a, a family of functions is given by the following for x > 0.
y(x) = ax - x ln x

(a) What is the x-intercept of the graph of f(x)?

(b) Find the coordinates of the critical point.

(c) Classify the critical point as a maximum, minimum, or neither.

I found part (a) by setting whole function as 0.
And I got x = e^a

回答 (1)

2010-04-02 7:41 pm
✔ 最佳答案
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2010-04-02 11:41:22 補充:
http://img181.imageshack.us/img181/7149/84472622.png


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