Scatter Plots and Equations of Lines

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Presentation transcript:

Scatter Plots and Equations of Lines Use the data in each table to draw a scatter plot. Describe the relationship between the two sets of data. 1 2 3 4 –3 8 9 5 –25 y x 1. 21 15 12 7 2. 6-6

Scatter Plots and Equations of Lines Solutions 1. Graph the points:   (1, 2) (2, –3) (3, 8) (4, 9) (5, –25) No Association. No consistent pattern between the y-values and the x-values. 2. Graph the points:   (1, 21) (2, 15) (3, 12) (4, 9) (5, 7) Negative Association. The y-value decreases as the x-value increases. 6-6