-Are critical points when the function is equal to zero?
-What is the difference of relative and absolute extrema? Is relative extrema is when the derivative is zero and the absolute extrema when the 2nd derivative = 0??
-Are critical points when the function is equal to zero?
-What is the difference of relative and absolute extrema? Is relative extrema is when the derivative is zero and the absolute extrema when the 2nd derivative = 0??
Critical points exist when the derivative of the function equals to 0 or undefined.
I'm not sure how to explain relative and absolute extrema, but I will try my best.
Relative extrema occurs when the derivative=0 and it changes sign around that x value.
Absolute extrema is basically the highest or lowest value on the graph.
The second derivative is used to test concavity.