What is the equation of the line that is normal to #f(x)=2x^3-3x^2+5# at # x=1 #?
1 Answer
Dec 4, 2015
The normal line is the vertical line through the point
Explanation:
At
The tangent at that point has slope
Since
The tangent line is horizontal. The normal line is perpendicular to the tangent line, so the normal line is vertical.