Oh, I wasn't saying that I was going to use this on my calculator.
I was just trying to give some sort of example to the level of experience that have with programming.
Lastly, your f(5) and f(8) values ARE WRONG. Make sure that you plugged 5 and 8 into f(x) and nothing else. Also, upon graphing, you will note that f(8) is not an absolute max or min. Compare f(0), f(5), and f(8)
btw, you're x-values are right, but your process is flawed.
Also, b/c of the interval, only f(5) applies from the derivative.
You will also want to graph the equation to make sure.
Graph all of f(x) and then eyeball where 0 and 8 are and just mark through them to show exactly the part of the...
You can't cancel
{-x^2+25}
and {(x^2+25)^2}
b/c of the negative.
If you factor out the negative:
\frac{-(x^2-25)}{(x^2+25)^2}
Which gives you a numerator of
{-(x+5)(x-5)}
which are your zeros of f'(x) and you just plug those x-values of x = +/- 5 into f(x) and find your max and min.
[SIZE="3"][FONT="Times New Roman"]I am looking to start learning programming more or less on my own. I can make some advanced programs on the TI-83+ calculator and have been for the past year. I learned just from reading the manual and messing with the different logic operators and commands...
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