Exhibit 1-13

Multiple Choice

Exhibit 1-13
-Compare the slopes of the tangents at points a and b in Exhibit 1-11. Which of the following statements is true?

A) The slope at a is positive, and the slope at b is negative.
B) The slope at a is negative, and the slope at b is positive.
C) The slope is positive at both a and b.
D) The slope is negative at both a and b.
E) The slope at a is equal to the slope at b.