### Home > CCA2 > Chapter 6 > Lesson 6.1.2 > Problem 6-28

6-28.

The table below shows the total population of Mexico for the given years.

What was the average rate of change for the population from

? The average rate of change is the slope between two points.

Find the slope betweenand .

Pay attention to the units.What was the average rate of change from

? When was the population growth rate higher?

Year | Population (millions) |

1900 | 13.6 |

1910 | 15.2 |

1920 | 14.4 |

1930 | 16.6 |

1940 | 19.8 |

1950 | 26.3 |

1960 | 35.0 |

1970 | 50.7 |

1980 | 69.7 |

1990 | 87.8 |

2000 | 100.3 |

2010 | 113.7 |