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Source: NASA Source: NASA. Unit 5, Investigation 1 Activity 1.1, p. 1 of 12. Unit 5, Investigation 1 Activity 1.1, p. 2 of 12. Sea Level Rise. The table shows the annually averaged change in the sea level since 1888. Many believe that this increase is due to global warming.

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## Source: NASA Source: NASA

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**Source: NASA**Source: NASA Unit 5, Investigation 1 Activity 1.1, p. 1 of 12**Unit 5, Investigation 1**Activity 1.1, p. 2 of 12 Sea Level Rise The table shows the annually averaged change in the sea level since 1888. Many believe that this increase is due to global warming. Let x be the number of years since 1900. Source: The original data for this table is from the Permanent Service for Mean Sea Level (PSMSL). Hubbard Glacier, Alaska, June 2005**Unit 5, Investigation 1**Activity 1.1, p. 3 of 12 Sea Level Rise If this trend continues, predict how much the sea level will have risen by 2010 and 2020. Hubbard Glacier, Alaska, June 2005**One approach to making our prediction is to graph the data**in the table to determine if there is a trend. Unit 5, Investigation 1 Activity 1.1, p. 4 of 12**How can we effectively use this scatter plot to make our**predictions? Unit 5, Investigation 1 Activity 1.1, p. 5 of 12**How do we use the trend line to help us make our**predictions? Unit 5, Investigation 1 Activity 1.1, p. 6 of 12**Unit 5, Investigation 1**Activity 1.1, p. 7 of 12**Find the equation of the trend line.**Unit 5, Investigation 1 Activity 1.1, p. 8 of 12**Unit 5, Investigation 1**Activity 1.1, p. 9 of 12**Use the equation to predict how much the sea level will**have risen by the year 2010 and the year 2020. Unit 5, Investigation 1 Activity 1.1, p. 10 of 12**Unit 5, Investigation 1**Activity 1.1, p. 11 of 12**Use the equation to predict by which year the sea level**will have risen 23 centimeters since 1888. If this trend continues, by 2036, the sea level will have risen 23 centimeters since 1888. Unit 5, Investigation 1 Activity 1.1, p. 12 of 12

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