Hi...
I've got some calculus questions that are really confusing me...I'm having to teach myself, and I'm not the best at it...So please help...
1. Find the largest open interval where the function is decreasing.
f(x)=square root of (4-x)
I got the answer decreasing at (4,infinity)
2. Identify the function's extreme values in the given domain and
say where they are assumed. Tell which of the values, if any, are absolute.
x^2 -4x, (-infinity is less than or = to x less than or = to 4)
Iot the answer local min. at (2,-4) local and absolute max. at (4,0)
I'm sure I got this one wrong...
3. Determine the location of each local extremum for the function.
x^3 +5x^2-13x+1
( got local max at 1, and local min. at 1)
4. Using the derivative shown, determine the intervals where the function is increasing or decreasing.
(1-x)(5-x)
(I got decreasing at (-infinity, 1) and increasing on (5, infinity))
So please help if you can...I just need to figure this stuff out..THANKS
2006-11-03
06:04:38
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2 answers
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asked by
Anonymous
in
Mathematics