hi all,

Im not too sure how to answer this question:

Find the equations of the normals to the curve xy=3 which are parallel to the line 3x - y - 2 = 0

obviously the equations need to be

$\displaystyle y=3x \pm c$

but how do you solve for c?

presumably you need to find the gradient function ie

$\displaystyle y'=-\frac{3}{x^2}$

do you set

$\displaystyle 3x-2=y'$

thanks

sammy