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Algebra 4.5

Algebra 4.5. Scatter Plots and Trend Lines. Learning Targets. Language Goal Students will be able to say information from reading a graph . Math Goal Students will be able to create and interpret scatter plots. Essential Question How do you use trend lines to make predictions?. Warm-up.

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Algebra 4.5

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  1. Algebra 4.5 Scatter Plots and Trend Lines

  2. Learning Targets Language Goal • Students will be able to say information from reading a graph. Math Goal • Students will be able to create and interpret scatter plots. Essential Question • How do you use trend lines to make predictions?

  3. Warm-up

  4. Homework Check

  5. Homework Check

  6. Homework Check

  7. Homework Check

  8. Vocabulary • Scatter Plot • Correlation • Positive Correlation A graph with points plotted to show a possible relationship between 2 sets of data. Description of a relationship between 2 data sets. On a scatter plot both sets of data increase

  9. Vocabulary • Negative Correlation • No Correlation • Trend Line On a scatter plot 1 set of data increases while the other set decreases. On a scatter plot there is no relationship between the data sets. A straight line on a scatter plot showing a relationship in the data.

  10. Correlation graphs

  11. Correlation Examples

  12. 4.5 Practice B

  13. 4.5 Practice B

  14. 4.5 Practice B

  15. 4.5 Problem Solving WS Fawn is trying to improve her reading skills by taking a speed reading class. She is measuring how many words per minute (wpm_ she can read after each week of class. Graph the scatter plot using the given data. Describe the correlation. Draw a trend line and use it to predict the number of words per minute that Fawn will read after 8 weeks of this class.

  16. 4.5 Problem Solving WS • Fawn is paying for the class each week out of her savings account. Identify the correlation between the number of classes and Fawn’s account balance.

  17. 4.5 Problem Solving WS • Match the graphs to the description provided. • The distance a person runs and how physically tired that person is. • The price of a new car and the number of hours in a day.

  18. 4.5 Problem Solving WS • Match the graphs to the description provided. 3. A person’s age and the amount of broccoli the person eats. 4. The number of cats in a barn and the number of mice in that barn.

  19. Lab! • Penny Flipping Good Time!

  20. Lesson Quiz

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