Solution Found!
Vertical tangent lines If a function f is continuous ata
Chapter 4, Problem 63AE(choose chapter or problem)
If a function f is continuous at a and \(\lim _{x \rightarrow a}\ |f'(x)|=\infty\), then the curve y = f(x) has a vertical tangent line at a and the equation of the tangent line is x = a. If a is an endpoint of a domain, then the appropriate one-sided derivative (Exercises 59-60) is used. Use this definition to answer the following questions.
Verify that \(f(x)=x^{1/3}\) has a vertical tangent line at x =0.
Questions & Answers
QUESTION:
If a function f is continuous at a and \(\lim _{x \rightarrow a}\ |f'(x)|=\infty\), then the curve y = f(x) has a vertical tangent line at a and the equation of the tangent line is x = a. If a is an endpoint of a domain, then the appropriate one-sided derivative (Exercises 59-60) is used. Use this definition to answer the following questions.
Verify that \(f(x)=x^{1/3}\) has a vertical tangent line at x =0.
ANSWER:SOLUTION If a function f is continuous at a and lim|f (x)| = , then the curve y= f(x) has a xa vertical tangent line at a and the equation of the tangent line is x = a