mkcolema
Questions
Newest questions posted by mkcolema

9. f(x)= x sqrt(x^2+4) on interval [5,4] What region does it concave down? What region does it concave up? Max? Min?

8. f(x)=  2x^3 + 45x^2 300x +9 There are 3 intervals (inf,A], [A,B], [B, inf) where A and B are critical points. Find A and B? For each of the intervals is it decreasing or increasing??

7. f(x)= 6x^3 9x^2 360x  5 What interval is it decreasing? What 2 intervals is it increasing? What is the local max?

6. f(x)= 12x^5 + 30x^4  160x^3 +4 For this function there are four important intervals:(inf, A] , [A,B] ,[B,C],[C, inf) where A ,B ,C are the critical numbers. Find A B AND C and at those points do they have a local min, max or neither??

5. f(x)= 2x^3 + 27x^2  108x +10 Value of x and local min? value of x and local max?
Responses
Newest responses posted by mkcolema

Thanks Damon. And to Bob and Reiny, I was not asking for answers at all, I assumed that when someone looked at the question they would explain how to do it, not give me the answer. Considering I have all the answers in the back of my book. But thanks.

nevermind i got it! thanks!

I don't understand how to get the min??

3/4 solve for y move 4y to the other side: 4y=3x16 Divide everything by 4: y=3/4x4