Writing Expressions Section 1.3 5/25/2019 2:54 AM 1.3: Write Expressions

Translating Verbal Phrases Chart Expression are numbers, symbols and operators grouped together that show the value; NO EQUAL SIGN Addition Subtraction Multiplication Division Sum Difference Times Quotient Plus Less Than Product Divided by Total Minus Multiplied by Divided into More Than Decreased by Of Increased by 5/25/2019 2:54 AM 1.3: Write Expressions

What would you replace is with? Hint words Put this statement into an equation: My mother is here What would you replace is with? My mother = here 5/25/2019 2:54 AM 1.3: Write Expressions

Example 1 Translate the verbal phrase into a expression, “The sum of twice a number and 4.” “The sum of twice a number and 4” 5/25/2019 2:54 AM 1.3: Write Expressions

“Twice the sum of a number and 4” Example 2 Translate the verbal phrase into a expression, “Twice the sum of a number and 4.” “Twice the sum of a number and 4” 5/25/2019 2:54 AM 1.3: Write Expressions

Your Turn 3 times the difference of 22 and the square of a number of a number, m 5/25/2019 2:54 AM 1.3: Write Expressions

“The quotient when the quantity 10 plus a number x is divided by 2” Example 3 Translate the verbal phrase into an expression, “The quotient when the quantity 10 plus a number x is divided by 2.” “The quotient when the quantity 10 plus a number x is divided by 2” 5/25/2019 2:54 AM 1.3: Write Expressions

Example 4 Translate the verbal phrase into an expression, “Twice the quotient of 50 and the sum of a number of x and 8.” 5/25/2019 2:54 AM 1.3: Write Expressions

Your Turn Translate the verbal phrase into an expression, “11 times the quotient of the square of a number x and 5.” 5/25/2019 2:54 AM 1.3: Write Expressions

Verbal Model Steps Draw a picture Write the expression of the verbal model Translate the verbal model into algebraic expression 5/25/2019 2:54 AM 1.3: Write Expressions

Example 5 A 48-inch wood stick is to be cut into two pieces so that the longer piece is 3 times the shorter. Write the expression for the length of the remaining side. 5/25/2019 2:54 AM 1.3: Write Expressions

Example 6 A piece of ribbon l feet long is cut from a ribbon 8 feet long. Write an expression for the length of the remaining piece. 5/25/2019 2:54 AM 1.3: Write Expressions

Your Turn A wire is to be cut so that the longer piece is one foot longer than 5 times the shorter piece. Write an expression for the longer piece. 5/25/2019 2:54 AM 1.3: Write Expressions

Assignment Pg 18 4-20 even, 32 5/25/2019 2:54 AM 1.3: Write Expressions