At what points on the hyperbola #xy=12# is the tangent line parallel to the line #3x+y=0#?
1 Answer
Mar 8, 2018
The points are
Explanation:
We can see that
#y' = -12/x^2#
So we need to have
#-3 = -12/x^2#
#x^2 = 4#
#x = +- 2#
Hopefully this helps!