Question

Using a Graph to Understand a Linear Function

ty
160
120
Height of Tree (inches)
The graph shows the growth of a tree, with x
representing the number of years since it was planted,
and y representing the tree's height (in inches). Use
the graph to analyze the tree's growth. Select all that
apply.
The tree was 40 inches tall when planted.
The tree's growth rate is 10 inches per year.
The tree was 2 years old when planted.
As it ages, the tree's growth rate slows.
Ten years after planting, it is 140 inches tall.
80
(5, 90)
|(2,60)
X
6
8
Years since Planting Tree

Answer 1

The tree was 40 in tall when planted

The tree's growth rate is 10in per year

Ten years after Planting, it is 140 inches tall

Step-by-step explanation:

original(slope intercept form) : y = 10x + 40

y = 10(10) + 40

y = 100 + 40

y = 40