Posted by Jessica on Monday, March 5, 2012 at 8:13pm.
What values of x is there an absolute minimum for the function y= 1/3x^2 + 2x?
I found the derivative of the function which is y'=2/3x + 2
set it to 0=y'=2/3x + 2
x=3
What do I do now?

Calculus  bobpursley, Monday, March 5, 2012 at 8:19pm
what is the second derivative of y?
y"=2/3, which means that the curve is downward, so that is a maximum...
The curve is a parabola, with a max at (x=3), and has no absolute min.

Calculus  Jessica, Monday, March 5, 2012 at 8:33pm
Thank you!
Answer This Question
Related Questions
 calculus  For the function f(x)=x^3e^x, determine intervals of increase and ...
 Calculus  determine the absolute extreme values of the function f(x)=sinxcosx+...
 Please check my Calculus  1. Find all points of inflection: f(x)=1/12x^42x^2+...
 Calculus (pleas help!!!)  Find the absolute maximum and absolute minimum ...
 Calculus (pleas help!!!)  Find the absolute maximum and absolute minimum values...
 Calculus  Find the absolute maximum and absolute minimum values of the function...
 Calculus  another question  "Find the absolute minimum value of the function f...
 Calculus  Find the extreme value(s) of the function f(x)=1/(1x^2). I tried, ...
 Please check my Calculus  1. Which of the following describes the behavior of f...
 Applied Calculus  Find the absolute maximum and absolute minimum values, if any...
More Related Questions