Question

A small tree was planted at a height of 5 feet. The tree has been planted for 16 months, and is now 48.2 feet tall. Which equation

could be used to find x, the average number of feet the tree grew each month?

Answer 1

Explanation:

how much did it grow per month ?

well, it grew from 5 to 48.2 ft in 16 months.

that means it grew 48.2 - 5 = 43.2 ft.

per month that is 43.2/16 = 2.6875 ft per month.

so, the equation would look like

x = (48.2 - 5)/16

Answer 2

Use the equation for Average Rate of Change which will give you 2.7 feet per month

Explanation:

The equation is:

`(y_(2)-y_(1))/(x_(2)-x_(1))`

Now insert your values:

`(48.2-5)/(16-0)`

The answer is: 2.7 feet per month