y=64x+16 150 16x2+96r 80 (1,80) Slope of tangent 50 line at(1, 80) IS m 64. In FIGURE 3.4 Copyright@2011 Pearson Education, Inc. Publishing as Pears on Addison-Wesley Slide 3-8Copyright © 2011 Pearson Education, Inc. Publishing as Pearson Addison-Wesley Slide 3 - 8