Chapter 2 voc Equation Solution Inverse Expression.

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Presentation transcript:

Chapter 2 voc Equation Solution Inverse Expression

2-2 Translating Between Words and Math

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

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

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

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

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

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.

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

Translate each algebraic expression into words 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

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

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

Function Tables ww ÷ 11n4 x n Evaluate each expression to find the missing value in each table.

Evaluate each expression to find the missing value in each table. n2n n25 - n

Find an expression for each table. x n x ÷ 8 n + 25

Find an expression for each table. n x nx - 2