CPM Homework Help : CALC Problem 10-79

Find the equation of a line such that $f^\prime(3) = 2$ and $f(3) = 5$ . Now find the equation of the normal line at $x = 3$ .

Hint:

This is a line with a slope of $2$ passing through the point $(3, 5)$ .
"Normal" means perpendicular. The slope of the normal line is $–1/2$ .