tan- instantaneous rate of change derivative at b near o m.= instantaneous rate of change derivative at c man instantaneous rate of change m.<0 derivative at a >0 FIGURE 3.7 Copyright@2011 Pearson Education, Inc. Publishing as Pears on Addison-Wesley Slide 3-12Copyright © 2011 Pearson Education, Inc. Publishing as Pearson Addison-Wesley Slide 3 - 12