Question

determine whether there is a max or min value for the given functions, and find that value.
f(x)=-3x^2-36x-117

Answer 1

I think you would just see if b^2-4ac is negative if it isn't then there is a max or min for the first step

Answer 2

differentiate the function and find the 'x' for which the differentiated function is 0. those 'x' values will be where f(x) either has a local minima or a local maxima. then check the nature of graph to see if it's a maxima or a minima.

Answer 3

nevermind I was thinking intercept apoorvk is right

Answer 4

Completing the Square

Answer 5

the intercept of f'(x) is a max or min for f(x) because the rate of change is zero at a max or min so apoorvk is right you find the zeros of the derivative.