So I have to build a boombox using transistors as amplifiers for my Engineering Electronics class in college and it works and everything. The only thing I have a question about is I want to make my own cord to use my iphone as the audio input signal that is to be amplified. At the lab they have...
Is it really necessary to find the y value for the point? If it is a function it has to pass the vertical line test which basically makes sure that each x-value has only one y-value. So x=whatever is technically not a point but it is somewhat pointless/unnecessary to put the y-value
But to say that it is an inflection point don't you have to provide some calculus reasoning. For me at least because I will be taking the Ap test i have to say something like-
x=0 is a point of inflection because f"(x) changed signs.
I think that's right...
Yea, for the second derivative tests things are sort of backwards.
If f"(c)<0, then x=c is a relative maximum.
If f"(c)>0, then x=c is a relative minimum.
f f"(c)=0 or undefined, then the second derivative test is inconclusive.