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Chapter 2 voc Equation Solution Inverse Expression.

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Presentation on theme: "Chapter 2 voc Equation Solution Inverse Expression."— Presentation transcript:

1 Chapter 2 voc Equation Solution Inverse Expression

2 2-2 Translating Between Words and Math

3 Writing & Describing Algebraic Expressions 5 + x MORE THAN Less Than

4 Variable: a symbol that stands for a number. Examples: a, b, x, y, …... Algebraic Expressions: a group of numbers, variables, and operations. Examples: 13 - g z + 2 3x + 8

5

6 AddSubtractMultipleDivide plusminusthe productthe quotient Combined, together the difference multiply, times divide the sumsubtractgroups ofinto total of*less thantimeseach, for every increased by decreased by double, triple per *more thanfewer thanTwiceout of additionalhow much more than.. ofshared equally

7 Examples: 3 less than a number n - 3 The sum of 5 and a number 5 + b The product of 7 and y 7y

8 Rules: Write each problem the way you read the words from left to right. “more than” OR “less than” means flip the problem parts.

9 Write an algebraic expression for each word phrase. 1.The sum of eighty-nine and a number. 2.The difference between forty-six and h. 3.The quotient of twenty and a number. 4.Fifty-five times f.

10 Write an algebraic expression for each word phrase. 1.one more than the product of twelve and a number Answer: 12p + 1 2.four less than a number n divided by two Answer: n ÷ 2 - 4 3.Six minus the quotient of u and two Answer: 6 – u ÷ 2

11 Translate each algebraic expression into words. 1. 3 + n Answer: 3 more than a number 2. 7h Answer: the product of 7 and h 3. a – 5 **use the word “less than” Answer: 5 is less than a

12 Translate each algebraic expression into words. 4. 4b – 3 Answer: 4 multiplied by b minus 3 OR three less than the product of four and b 5. 16g + 12 Answer: The product of 16 and g plus 12 OR Sixteen times g plus 12

13 2-3 Translating Between Tables and Expressions I can write expressions for tables and sequences

14 Function Tables ww ÷ 11n4 x n + 6 551 662 773 Evaluate each expression to find the missing value in each table.

15 Evaluate each expression to find the missing value in each table. n2n - 2 1 6 7 n25 - n 205 5 18 9

16 Find an expression for each table. x 00 729 8811 n 1540 2550 3560 x ÷ 8 n + 25

17 Find an expression for each table. n 1326 918 3060 2550 x 86 42 20 2nx - 2


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