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.

Write what you think it is in your notes.

If you want to change your answer do it now!

Second Chance: Like = 2 Share = 288 Comment = both Write your answer in your notes.

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

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

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

 The expression -0.3y + 61 models the percent of eligible voters who voted in presidential elections from 1960 to In the expression, y represents the number of years since Find the approximate percent of eligible voters who voted in  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%

 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.

A.31.4% B. 48% 27. A. 584,336,233.6 miles B hours C. Should be yes. See work °F (nearest tenth)