How do you determine the concavity for #g(x)=-x^2+3x+4#?
1 Answer
Apr 17, 2015
The concavity of a function is the sign of its second derivative.
If, in a set, it is positive, than the concavity is up, if negative the concavity is down, if it is zero, there could be an inflection point there.
So:
Since the second derivative is always negative, it has always concavity dawn.
