bell work8/19/14 evaluate each expression for the replacement set
Post on 19-Jan-2016
226 Views
Preview:
TRANSCRIPT
Bell Work 8/19/14Evaluate each expression for the replacement set 3, 9, 13 .
1. 2x 3x
2
9x
2
13x
2
Evaluate each expression for the replacement set 7, 12, 16 .2. 4x
7x
4
12x
4
16x
4
Yesterday’s Homework
1. Any questions?2. Please pass your homework to the front.
• Make sure the correct heading is on your paper.• Is your NAME on your paper?
• Make sure the homework is 100% complete.• Incomplete work will NOT be accepted.
What Do Notes Look Like?• Heading
• Date
• Section # and Title
• Notes• You do not have to copy the text in blue!
•Homework
Variables and Expressions (translate)
04/21/23
Heading
TSWBAT: write a word phrase as a variable expression.
Students simplify expressions before solving linear equations and inequalities in one variable, such as 3(2x - 5) + 4(x - 2) = 12.
1.1B
Notes• Word Meanings
Addition (+) Subtraction (-) Multiplication (x) Division (÷)sumplus
increased bymore than
differenceminus
decreased byless than
producttimes
multiplied by
quotientdivided by
x plus 7
Ex.
x 77x
9 times p
Ex.
9 p9 p
Write the phrase as a variable expression.
NotesWrite the phrase as a variable expression.
Now you try.
The difference between r and 3.
Ex.
r 33r
The product of 7 and m.
Ex.
7 m
7m
NotesGive two ways to write each algebraic expression in words.
Now you try.
What words can we use? Ex.
2x difference
minusdecreasedless than
The difference of x and 2x minus 2x decreased by 22 less than x
What words can we use? Ex.
7 ysumplus
increasedmore than
The sum of 7 and y7 plus y7 increased by yy more than 7
NotesGive two ways to write each algebraic expression in words.
Now you try.
What words can we use? Ex.
8r
producttimes
multiplied
The product of 8 and r8 times r8 multiplied by r
What words can we use?
Ex.
2
x
quotientdivided by
The quotient of x and 2x divided by 2
Summary
In real life people communicate with words not math operations. Translation words include: sum means _________, __________ means subtraction, product means _____________, and ________ means division.
addition differencemultiplication quotient
Today’s Homework
1. Pencil ONLY.2. Must attempt EVERY problem.3. Always check your answers.
Rules for Homework
HomeworkWrite the phrase as a variable expression or sentence.
1. 8 times x 2. t decreased by 3
3. a divide by 2 4. 5 more than x
5. r less than 6 6. The product of 5 and n
Give two ways to write each algebraic expression in words.
7. 2m 8. 9c
9. 4x 10. 5p
Complete the Ticket Out the Door without talking!!!!!
Talking = time after the bell!
Ticket Out the Door
Put your NAME on the paper.
When finished, turn your paper face DOWN.
10x
Give two ways to write each algebraic expression in words.
top related