# A Good Enough Fit?

### Resources for this lesson:

You will use your Algebra II Journal on this page.

> Glossary

> Calculator Resources

> Teacher Resources: Instructional Notes

## Create and Analyze

In order to make an accurate prediction, Andrew must first create and analyze a scatter plot. To do so, Andrew first created a table of values and let 2007 = year 0.

Years since 2007 |
Winning time (minutes) |
---|---|

0 |
16.33 |

1 |
16.77 |

2 |
17.5 |

3 |
16.77 |

4 |
16.35 |

5 |
16.42 |

He then created the following scatter plot.

Andrew thinks that the data may be modeled with a linear function.

## Check Your Understanding

## Check Your Understanding

## Check Your Understanding

## Algebra II Journal: Reflection 1

Now that you have found an equation for line of best fit and made a prediction for the 2014 winning time, it is time to assess the estimated value. Respond to this reflection question in your Algebra II Journal and submit your reflection to your teacher.

How accurate is the estimated winning time for 2014? Why?