Final answer:
To model the problem, we set up a system of linear equations. The solution to the system is (1, 3), meaning the lemon tree is 1 foot tall and the apple tree is 3 feet tall after 1 year.
Step-by-step explanation:
To model the problem, we can set up the following system of linear equations:
Let L represent the height of the lemon tree (in feet) and let A represent the height of the apple tree (in feet).
For the lemon tree, we have the equation L = 1 + 2t, where t represents the number of years.
For the apple tree, we have the equation A = 2 + t.
To find the solution to the system of equations, we can solve them simultaneously.
Substituting the second equation into the first equation, we get (2 + t) = 1 + 2t.
Simplifying the equation, we get t = 1.
Substituting t = 1 into the second equation, we get A = 2 + 1 = 3.
Therefore, the solution to the system of linear equations is (1, 3), which means that the lemon tree is 1 foot tall and the apple tree is 3 feet tall after 1 year.