1.1.1 Variables and Expressions (continued)
Example 3 Evaluating Algebraic Expressions
To evaluate an expression, find the value of that expression by substituting a number for the variable (or variables) and then simplifying the resulting numerical expression, as demonstrated by Prof. Burger in Example 3.
Example 4 Recycling Application In Example 4, Prof. Burger demonstrates translating words into an algebraic expression that is evaluated for specific values of the variable to answer real-world questions.
11
Made with FlippingBook Digital Publishing Software