I need help with this question.
1 answer:
You might be interested in
Given that and
, it follows that
###
When , we have
The slope of the line tangent to at (0, 3) has slope
,
Then the tangent line at this point has equation
###
Differentiating both sides of
with respect to yields
On this curve, when we have
(ignoring the negative solution because we don't care about it)
The tangent to this curve at the point has slope
. This tangent line is horizontal when its slope is 0. This happens for
and when , there is a horizontal tangent line to the curve at the point (2, 8).