How do you evaluate limits algebraically?

Problem Statement

How do you evaluate limits algebraically?

Step-by-Step Explanation

Algebraic limit techniques include substitution, factoring, rationalizing, and simplifying expressions.

1. Identify what the question is asking. In Calculus, this usually means naming the known quantities, the unknown quantity, and the concept that connects them.
2. Write the relevant definition, rule, or relationship before substituting numbers or manipulating symbols.
3. Work one step at a time and keep units, signs, and restrictions visible.
4. Check whether the answer makes sense in the original context.

Final Answer

Algebraic limit techniques include substitution, factoring, rationalizing, and simplifying expressions. The reliable strategy is to start from the definition, apply the correct rule carefully, and then interpret the result in plain language.