Let $f(x) =2 x^2 - 10 x + 3$
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
$b=$.
Hint: the slope is given by the derivative at $x=4$, ie.
$\displaystyle{ \lim_{x\to4}\frac{f(4+h)-f(4)}{h}}$