SOLUTION: Find a formula for the slope of f(x)= (7)/(x+4)
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Question 980453: Find a formula for the slope of f(x)= (7)/(x+4)
Found 2 solutions by josgarithmetic, solver91311:
Answer by josgarithmetic(39630) (Show Source): You can put this solution on YOUR website!
Where? Which point or for which x-value? Slope is for a line. Derivative is for a curve. Your function is not a line. Do you really want the derivative?
----response: Derivative.
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
Use the quotient rule:
}{g(x)}\right)\ =\ \frac{g(x)f'(x)\,-\,f(x)g'(x)}{\[g(x)]^2})
\ =\ 7)
so \ =\ 0)
\ =\ x\ +\ 4 )
so \ =\ 1)
So
\ =\ \frac{0\,-\,7}{\[x\,+\,4]^2})
Or more simply:
\ =\ \frac{-7}{(x\,+\,4)^2})
John
My calculator said it, I believe it, that settles it
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