Sketch the graph of $f(x)=\sqrt{6-x}$ by starting with the graph of $y=\sqrt x$ and using transformations. Use that sketch to graph $f'$.

Use the definition of derivative to find $f'(x)$, and enter the answer below

$f'(x) =$

Which of the following is the domain of the function $f$?

A. $x\geq 6$
B. $x>6$
C. Nonnegative real numbers
D. $x< 6$
E. $x\le 6$
F. Positive real numbers
G. Integers

Which of the following is the domain of the derivative $f'$?

A. $x\le 6$
B. $x> 6$
C. Positive real numbers
D. Nonnegative real numbers
E. $x<6$
F. All real numbers except 0
G. $x\geq 6$
H. Integers