Posted by **Allison** on Thursday, September 29, 2011 at 1:09pm.

Let f(x)=21−x^2

The slope of the tangent line to the graph of f(x) at the point (−4,5) is ______ .

The equation of the tangent line to the graph of f(x) at (−4,5) is y=mx+b for

m=______

and

b=_______.

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