Question

a landscaper planted a 4-foot tree. every year, its height increases by 2 feet. how tall will it be after 8 years?
y = 2x + 4
? feet

Explanation:

Step1: Identify the value of x

Here, x represents the number of years, so x = 8.

Step2: Substitute x into the equation

We have the equation \( y = 2x + 4 \). Substitute x = 8 into it: \( y = 2\times8 + 4 \)

Step3: Calculate the value of y

First, calculate \( 2\times8 = 16 \), then \( 16 + 4 = 20 \).

Answer:

20