Let f(x)=Sqrt(68−x)
The slope of the tangent line to the graph of f(x) at the point (,48) is _______ .
The equation of the tangent line to the graph of f(x) at (4,8) is y=mx+b for m=______ and
b=_______.
Hint: the slope is given by the derivative at x=4, ie.
lim
x-4 (f(4+h)−f(4))/h

Question

Let f(x)=Sqrt(68−x)  
The slope of the tangent line to the graph of f(x) at the point (,48) is _______ . 
The equation of the tangent line to the graph of f(x) at (4,8) is y=mx+b for m=______ and 
b=_______.
Hint: the slope is given by the derivative at x=4, ie. 
lim
x->4    (f(4+h)−f(4))/h

anonymous · Answer

I tried attempting this but every time I try I get the wrong answer, can someone help me through this?

anonymous · Answer

ohhhhh i use to know this

anonymous · Answer

Do you remember it? :/ I really could use it