Please help if you can
Let f be the function given by
a) Find the domain of f.
b) Find f '(x)
c) Find the slope of the line normal to the graph of f at x = 5

Question

Please help if you can 
Let f be the function given by
	a) Find the domain of f.
	b) Find f '(x)
	c) Find the slope of the line normal to the graph of f at x = 5

mertsj · Answer

What is the function given by?

anonymous · Answer

sorry i thought i posted it, $$f(x)=\sqrt{x ^4-16x ^{2}}$$

mertsj · Answer

This is about the 8th time this problem has been posted today.  What is going on?

anonymous · Answer

School project our math teacher assigned for us to use this site to get help

mertsj · Answer

Tell your teacher that this site it to help those who need it not for some social experiment.