O Slope of tangent Slope of tangent line and line and Instantaneous Instantaneous rate of change rate of change are negative are positive FIGURE 3. 1 Copyright@2011 Pearson Education, Inc. Publishing as Pears on Addison-Wesley Slide 3-4Copyright © 2011 Pearson Education, Inc. Publishing as Pearson Addison-Wesley Slide 3 - 4