Find the maximum and the minimum values, if any, of the following functions `f(x)=3x^2+6x+8,x in R`

Find the maximum and the minimum values,if any,of the following functions f(x)=|x+3| for all x in R.

Find the maximum and the minimum values, if any, of the following functions f(x)=-|x-1|+5fora l lx in R

Find the maximum and the minimum values, if any, of the following functions f(x)=|x+3| for all x in Rdot

Find the maximum and minimum values, If any, of the following functions f(x) =| x+2 | -1

Find the maximum and the minimum values,if any,of the following functions f(x)=-|x-1|+5 for all x in R

Find the maximum and minimum values, If any, of the following functions f(x) = |sin 4x + 3|

Find the maximum and the minimum values, if any, of the following functions f(x)=sin3x+4,x in (-pi/2,pi/2)

Find the maximum and minimum values, If any, of the following functions given by f(x)=9x^2+12x+2