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September 21, 2014

September 21, 2014

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

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=_______.

- Calculus -
**Steve**, Thursday, September 29, 2011 at 3:05pmf(x) = 21-x²

f'(x) = -2x

f'(-4) = 8

The line through (-4,5) with slope 8 is

(y-5)/(x+4) = 8

y = 8x +37

I think that's enough of these.

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