### Home > CALC > Chapter Ch3 > Lesson 3.4.1 > Problem 3-155

3-155.

Re-examine your graph of

from problem 3-154. Homework Help ✎ As accurately as possible, draw a tangent to

*y*at*x*= 2. Estimate its slope.According to your derivative,

*y*′, what is the slope of the tangent at*x*= 2?

The tangent line should look vertical. What is the slope of a vertical line?

Refer to hints in problem 3-154.