Question

The scatterplot below shows the relationship between millions of square miles of arctic sea ice and the year. the line of best fit can be represented by the equation y= -0.44x + 886.7. Show how you would use the equation to determine the amount of sea ice left in 2015. show your work!​

Answer 1

y = 0.10

Explanation:

Using the equation, y = -0.44x + 886.7:

You can plug in the year (2015) as the value of x into the given equation. In doing so, you'll be able to determine what the value of y is (the amount of sea ice left).

y = -0.44x + 886.7

y = -0.44(2015) + 886.7

y = -886.6 + 886.7

y = 0.10

Therefore, the amount of sea ice left in 2015 is 0.10.

Note: I'm not sure which unit of measure to follow because on the graph, it states that the "Area of Sea Ice" is (in millions of sq km); while in your given instructions, it states that "The scatterplot below shows the relationship between millions of square miles of arctic sea ice and the year." I don't know if the unit of measure matters, but no matter what, the y-value should be 0.10.