copyright 2002, pearson education canada1 how to read and understand graphs appendix to chapter 1

Copyright 2002, Pearson Education Canada1

How to Read and Understand Graphs

Appendix to Chapter 1

Copyright 2002, Pearson Education Canada2

Time Series Graphs (Figure1A.1)

Copyright 2002, Pearson Education Canada3

Time Series Graphs (Table 1A.1 & Figure 1A.2)

Copyright 2002, Pearson Education Canada4

A Cartesian Coordinate System (Figure 1A.3)

Copyright 2002, Pearson Education Canada5

A Cartesian Coordinate System (Figure 1A.4 and Table 1A.2)

Copyright 2002, Pearson Education Canada6

Positive and Negative Slopes of Curves (Figure 1A.5)

Copyright 2002, Pearson Education Canada7

Calculating the Slope of a Line

The slope of a line measures how much the variable on the y-axis changes when the variable on the x-axis changes by one unit.

SLOPE = ΔY = Y2 - Y1

ΔX X2 - X1

Copyright 2002, Pearson Education Canada8

Changing Slopes Along Curves (Figure 1A.6a)

Copyright 2002, Pearson Education Canada9

Changing Slopes Along Curves (Figure 1A.6b)

Copyright 2002, Pearson Education Canada10

Changing Slopes Along Curves (Figure 1A.6c)

Copyright 2002, Pearson Education Canada11

Changing Slopes Along Curves (Figure 1A.6d)

Copyright 2002, Pearson Education Canada12

Changing Slopes Along Curves (Figure 1A.6e)

Copyright 2002, Pearson Education Canada13

Changing Slopes Along Curves (Figure 1A.6f)

Copyright 2002, Pearson Education Canada14

Review Terms and Concepts

cartesian coordinate system

graph negative relationship origin positive relationship

slope time series graph x-axis y-axis y-intercept