Consider the following function.f(x) = 6 − |x − 8|

Soution:
Given the function;
[tex]f(x)=6-|x-8|[/tex](a) Critcal points are points where the function is defined and the derivative is zero or undefined.
Absolute value functions are piecewise function;
Hence, the critical number of f is;
[tex]x=8[/tex]