Posted by Anonymous on .
Find the slope m of the tangent line to the graph of the function at the given point and determine an equation of the tangent line.
f(x) = 2 x  4 x^2( at ) (2,20)
m=
y=

Calculus PLEASE HELP 
Reiny,
take the derivative
sub in the x value of the given point to get the slope m
Now use the method you probably learned in grade 9 to find the equation of a line given the
slope and a point on it.