Textbook ExpertVerified Tutor
18 Nov 2021
Given information
given :- The curve equation 
to find :- At what points is the tangent horizontal ? where is it vertical ?
Step-by-step explanation
Step 1.
Consider the equation ,
,
Differentiate on both sides ,
For the horizontal tangent line.
Substitute in the equation
Single Variable Calculus: Early Transcendentals
4th Edition, 2018
Stewart
ISBN: 9781337687805