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are you asking a method?
yeah, for example I know that you can find critical points by taking the derivative and setting it equal to zero, but what are the other possible ways?
You can plot a graph and then see the critical points - that's another method.
There's one more way, but I cant seem to get it. :/
yes..or plot on a sign diagram...(never liked that way) for example, f(x)=(x-1)^2 factor out f(x)=(x=1)*(x-1), set x+1=0 set x-1=0. these will be crit. points
So, to find critical points are you saying we just factor out the function and set it equal to zero (instead of taking the derivative?)
my mistake...been a while. no done for first derivative...
are you trying to get the relative max and min, or also the absolutes?
For this question?
no..just trying to get context, since the 2nd der. will give absolutes
I'm sorry, Im confused.
well..me too. you want 3 ways, in general, to find the critical values?
the critical points are max, min and points of inflexion.
ok. 2nd derivatives are the inflection points
1. Find the derivative and set it to 0. This way, you get max and min. The second derivative should give you points of inflexion. 2. Plot the equation on a graph and find the max, min and inflexion points visually. 3. Use a computer/calculator ;)?
lol, maybe so. Thanks, guys (: