It is True that it is enough to look at the points where f'(x) = 0 to determine the value of absolute maxima or minima, the correct option is A.
A function is a mathematical law that relates an independent and a dependent variable.
It always has a defined domain and range.
The function is continuous in a closed interval [a,b].
If the derivate is taken of the function i.e. f'(x)
After finding the values of the independent variable which makes the function equal to zero.
The value of the independent variable is substituted to find the value of the dependent variable.
y = f(x).
The lowest value of y is the absolute minimum
The highest value of y is the absolute maximum.
So, it is True that it is enough to look at the points where f'(x) = 0 to determine the value of absolute maxima or minima.
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