OpenStudy (linn99123):

The height of a tree has been increasing each year. The graph shows data about the tree's height over time. When the tree reaches a height of 21 feet, the county needs to trim the tree to avoid damage to power lines. Which is a reasonable prediction for the year the tree will be 21 feet tall? A. year 3 B. year 6 C. year 7 D. year 9 http://lv.k12.com/mediaFiles/Ninth_Grade/Math/Unit17526/Lesson68678/VHS_PA_S2_02_L210_L309_Q4.gif

3 years ago
OpenStudy (anonymous):

The dots represent the function, I strongly recomend finding the function and then plugging 21 for the y and this will give you the x values which will tell you the year. Hope this helped.

3 years ago
OpenStudy (linn99123):

@tester97

3 years ago
OpenStudy (tester97):

C year 7 because each year the tree grows 3 feet

3 years ago