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Warm-up

Warm-up. The set of whole numbers and their opposites is the set of _____________________. Which value is equivalent to ?. Lesson 16: Simplifying and evaluating variable expressions. Expressions and Equations. A note on taking notes…. For today, ALL the examples MUST be in your notes.

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Warm-up

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  1. Warm-up • The set of whole numbers and their opposites is the set of _____________________. • Which value is equivalent to ?

  2. Lesson 16: Simplifying and evaluating variable expressions Expressions and Equations

  3. A note on taking notes… • For today, ALL the examples MUST be in your notes. • Make sure you write the initial problem down. • They will be in PINK.

  4. Evaluating Expressions • To evaluate an expression that contains variables, substitute the value for each variable, then simplify • We can also simplify the expression with the variables and then substitute the values.

  5. Example Evaluate each expression for the given values. for and

  6. Example Evaluate each expression for the given values. for and

  7. Example Evaluate each expression for the given values. for, ,

  8. Example Evaluate each expression for the given values. for, , and

  9. Example Evaluate each expression for the given values. for, and

  10. Example Evaluate each expression for the given values. for, and

  11. Example Evaluate each expression for the given values. for, and

  12. Example A savings account increases as interest accumulates according to the formula , where and. If what is ?

  13. Homework • 1st and 2nd: Lesson 16 Pg. 90-92 #1-30 • 3rd: Lesson 15 Pg. 83-85 #16-30

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