1. Pre-Unit: Intro to Algebra II Learning Target: I will evaluate algebraic expressions for a given value using the order of operations and technology. Homework: pg 7 #1-10, 27, 37, 38, 41, 43 *Students are to show all work using the order of operations.

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5.  Evaluate the expression for x = 3. A. 22 B. -2 C. 10 D. -14

6.  P___________  E___________  M__________  D__________  A__________  S___________ Simplify (6-2)² - 4 + 9 ÷ 3 using the order of operations. Check yourself using your calculator. Did your answers match? If not, where did you go wrong?

7.  A.  B.  C.  D. Solution: 625 Solution: 2 Solution: -17 Solution: -28

9.  The expression -0.3y + 61 models the percent of eligible voters who voted in presidential elections from 1960 to 2000. In the expression, y represents the number of years since 1960. Find the approximate percent of eligible voters who voted in 1988.  Suppose this expression holds true for future years. What percent of eligible voters will vote in the 2012 elections?  What would be some causes of the model not holding true for the future, including in the race between President Obama and Mitt Romney? Solution: 52.6% Solution: 45.4%

11.  PG 7 # 1-10, 27, 37, 38, 41,43 Show all work using the order of operations. You may use the calculator for only one operation at a time. Do NOT put the entire expression in the calculator. Round to the 3 rd decimal place when necessary.

12. 1. 4.6 2. 32 3. 18.4 4. 2.6 5. 11.6 6. 4.16 7. 0.969 8. 6.25 9. 0.6 10. A.31.4% B. 48% 27. A. 584,336,233.6 miles B. 8761 hours C. Should be yes. See work. 37. 70°F 38. 95.0 (nearest tenth) 41. 6.9