Algebra-1

Question Analysis
The question tests the student's ability to recognize a linear relationship based on the given context.

Key Concept Explanation
Linear relationships have a constant rate of change, which means the dependent variable (in this case, the height of the tree) increases by a fixed amount for each unit increase in the independent variable (time in years).

Step-by-step Solution
1. Identify the initial value: 13 feet.
2. Identify the rate of change: 2 feet per ...