Wednesday

August 20, 2014

August 20, 2014

Posted by **enigma** on Wednesday, September 26, 2012 at 10:53am.

f(x,y) = x^4 - y^2 - 2x^2 + 2y - 7

Using the second derivative test for functions of two variables, classify the points (0,1) and (-1,1) as local maximum, local minimum or inconclusive.

- math -
**Writeacher**, Wednesday, September 26, 2012 at 10:57amYou must be taking a test!!

Please be aware that no one here will do your work for you, especially when you post your last 7 problems (with no thoughts of your own) in under 4 minutes!!

- math -
**enigma**, Friday, September 28, 2012 at 3:44pmi apologise if that is the case. it's just that i have no idea where to start.

thank you for your time.

- math -
**enigma**, Saturday, September 29, 2012 at 2:33am(-1,1) is classified as a saddle point because the value it gives after the second derivative test is less than 0 therefore the value is inconclusive. While (0,1) is classified as a local maximum because the value it gives after the second derivative test is a negative.

**Related Questions**

calculus - consider the function; f(x)=x^4-3x^2-1 a) Find all the point where f...

math - this question concerns the function f(x)=-2x3+3x2+12x+10 (a)find the ...

Math - Simple rational functions (check) - Consider the function f(x) = x/(x-1) ...

math - can some one please help me with the following questions as i dont ...

calculus - Find the critical point(s) of the function. Then use the second ...

calculus - Find the critical point(s) of the function. Then use the second ...

Calculus-Function - sketch the graph of a function in neighborhood x=2 that ...

Math - find any stationary points of the function g(x) = (2x-3)square root of 5+...

Math - derivative of sinusoidal (check) - a) Find a function y=f(x) that ...

increasing decreasing and more - How to analytically find the intervals on which...