Objectives Vocabulary Example 1 Example 2 Example 3
Objectives Vocabulary Example 1 Example 2 Example 3 Quick Quiz
• To use variables to write expressions • To understand the order of operations • To practice using expressions to represent specific situations • To use flowcharts to build expressions • To solve equations using backtracking
• variable • exponent • backtracking • flowchart
MONEY Nina has a new job. She spends $2 every day on coffee. Define a variable. Then write a function rule that relates the total amount of money Nina spends on coffee to the number of days at work. Determine the function rule. The amount of money spent depends on the number of days at work. Let x represent the number of days at work.
Words $2 for each day Variable Let x represent the number of days. Equation 2 ● x Answer: The function rule is 2 x. Arithmetic Sequences
MOVIE RENTAL A video store rents movies for $4. 00 each. Write a function rule that relates the total charge to the number of movies m rented. A. 4 + m B. 4 – m C. 4 m D. 1. 2. 3. 4. A B C D
Write the phrase twenty dollars less the price of a movie ticket as an algebraic expression. Words twenty dollars less the price of a movie ticket Variable Let m represent the price of a movie ticket. Expression 20 – m Answer: 20 – m
Write the phrase five more inches of snow than last year’s snowfall as an algebraic expression. A. 5 – s B. 5 s C. 5 + s D. s – 5 1. 2. 3. 4. A B C D
Evaluate 20 + c if c = 5. 20 + c = 20 + 5 = 25 Answer: 25 Replace c with 5. Add 20 and 5.
Evaluate m + 9 if m = 25. A. 8 B. 16 C. 34 D. 45 1. 2. 3. 4. A B C D
A game arcade charges $1 for a rechargeable game card that you need to play each game. Each game costs $2. 50. How many games will Eric play for $20? A. 7 games B. 8 games C. 16 games D. 10 games 1. 2. 3. 4. A B C D
Select the equation the flowchart represents. A. n + 4 + 5 = 21 B. 4 n + 5 = 21 C. 4 n × 5 = 21 D. n + 4 × 5 = 21 1. 2. 3. 4. A B C D
Choose which flowchart represents 3(n + 1) – 4 = 65. A. B. C. D. 1. 2. 3. 4. A B C D
A. B. 8 C. D. 1. 2. 3. 4. A B C D
A. B. C. D. 1. 2. 3. 4. A B C D
C. Evaluate 3 g 2 if g = 4. A. 24 B. 144 C. 48 D. 5. 3 1. 2. 3. 4. A B C D
A. B. C. 2 D. 1. 5 1. 2. 3. 4. A B C D
Image Bank Math Tools Multilingual e-Glossary Arithmetic Sequences Modeling Algebraic Expressions Distributive Property
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