The curve is
and the point is
.
Apply derivative on each side with respect to
.


Apply power rule of differentiation :
.
Apply product rule of differentiation :
.






.
Slope of the tangent at point is the derivative of the function at that point.
\The derivative of the function at
.
Substitute
and
in
.

.
Slope of the tangent at point
is
.
Slope of the tangent at point
is
.