Hello,
A horizontal tangentline means that:
All you have to do is:
1) Find the derivative
2) Solve the equation with respect to x
3) Done
I'm a little put off by the wording on this question, if anyone can offer some guidance on how to begin that would be great. also, sorry if i enter the symbols wrong, i'm new here. i don't know why the square root symbol isn't covering all of , but it should.
"find the x-coordinates of the points on the graph where the tangent line is horizontal"
ok so when i'm doing the derivative i use chain rule to figure out the bottom part right?
derivative of top = 1
derivative of bottom using chain rule =
u=
h(u) =
then use quotient rule for the rest?
???
then would i just plug in 0 for x???
thanks for your help!