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

Question

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

anonymous · Answer

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.

linn99123 · Answer

@tester97

tester97 · Answer

C year 7 because each year the tree grows 3 feet