posted by Allison .
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
f(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.