### Home > PC3 > Chapter 13 > Lesson 13.3.3 > Problem 13-127

13-127.

Let .

Sketch a graph of

, showing that the minimum value of the function occurs when.Calculate the slope of the line tangent to

when.

13-127.

Let .

Sketch a graph of

, showing that the minimum value of the function occurs when.Calculate the slope of the line tangent to

when.