Transcript TODAY IN ALGEBRA 1…  Warm Up: Evaluating Expressions  Learning Goal: 1.3 You will translate verbal phrases into expressions.  Practice Quiz-What we.

TODAY IN ALGEBRA 1…
 Warm Up: Evaluating Expressions
 Learning Goal: 1.3 You will translate
verbal phrases into expressions.
 Practice Quiz-What we know so far!
 Independent Practice – NO A.T.
WARM UP: Copy the problem in your notebook, then
evaluate each expression.
1. Evaluate 2 54 ÷ (42 + 2)
= 2 54 ÷ (16 + 2)
= 2 54 ÷ 18
=23
=𝟔
2. Evaluate
5𝑥
when
𝑥+2
5·3
=
3+2
15
=
5
=𝟑
Evaluate power
Add within parenthesis
Divide
Multiply
𝑥 = 3.
Substitute 3 for x
Multiply and add
Divide
TRANSLATING VERBAL PHRASES INTO EXPRESSIONS:
Copy the following table into your notebooks:
OPERATION
Addition:
Subtraction:
Multiplication:
Division:
VERBAL PHRASE
EXPRESSION
Vocabulary used for each operation: write down which
vocabulary word from our word bank, goes under each
operation.
WORD BANK:
divided into
OPERATION
divided by
decreased by times
Addition: sum plus
of
increased by more than
more than
total
sum
total
Subtraction: decreased by
plus
product
minus
quotient
difference
less than
difference
multiplied by
Multiplication: of
minus
multiplied by
increased by
product
times
less than
Division:
divided into
quotient
divided by
TRANSLATING VERBAL PHRASES INTO EXPRESSIONS:
Lets complete the rest of your table:
OPERATION
VERBAL PHRASE
EXPRESSION
Addition: sum, plus,
increased by, more
than, total
The sum of 2 and a number x
2+𝑥
The number n plus 7
𝑛+7
Subtraction:
decreased by, minus,
less than, difference
A number y minus 5
The difference of a number n
and 6
12 times a number y
𝑦−5
Multiplication: of,
multiplied by, times,
product
1
3
of a number x
Division: divided into, The quotient of a number k
and 2
quotient, divided by
𝑛−6
12𝑦
1
𝑦
3
𝑘
2
PRACTICE: Translate each verbal phrase into an algebraic
expression.
Verbal Phrase
a. 4 less than the quantity 6 times
a number n
Expression
b. 3 times the sum of 7 and a
number y
3(7 + 𝑦)
c. The difference of 22 and the
square of a number m
22 − 𝑚2
6𝑛 − 4
PRACTICE: Translate each verbal phrase into an algebraic
expression.
Verbal Phrase
a. 6 more than twice a number x
Expression
2𝑥 + 6
b. The quotient of 10 and y
10
𝑦
c. 5 less than the square of
number m
𝑚2 − 5
PRACTICE QUIZ:
Testing what we know
so far!
PRACTICE QUIZ: Copy the problems on the given sheet of
paper, then evaluate the expression.
1. 8 + 𝑎 𝑤ℎ𝑒𝑛 𝑎 = 5
=8+5
= 𝟏𝟑
3.
𝑝
4
𝑤ℎ𝑒𝑛 𝑝 = 16
16
4
=
=𝟒
5.
2𝑚+9
𝑤ℎ𝑒𝑛
𝑚
2 2 +9
=
2
4+9
=
2
𝟏𝟑
=
𝟐
𝑚=2
2. 27 − ℎ 𝑤ℎ𝑒𝑛 ℎ = 21
= 27 − 21
=𝟔
4. 7 + 𝑦 2 𝑤ℎ𝑒𝑛 𝑦 = 3
= 7 + 32
=7+9
= 𝟏𝟔
3𝑥
6.
𝑤ℎ𝑒𝑛 𝑥 = 3
𝑥−1
3 3
=
3−1
𝟗
=
𝟐
PRACTICE QUIZ continued…: Copy the problems in your
notebook then translate the verbal phrase into an expression.
1. 8 + 𝑎 𝑤ℎ𝑒𝑛 𝑎 = 5
=8+5
= 𝟏𝟑
3.
𝑝
4
𝑤ℎ𝑒𝑛 𝑝 = 16
16
4
=
=𝟒
5.
2𝑚+9
𝑤ℎ𝑒𝑛
𝑚
2 2 +9
=
2
4+9
=
2
𝟏𝟑
=
𝟐
𝑚=2
2. 27 − ℎ 𝑤ℎ𝑒𝑛 ℎ = 21
= 27 − 21
=𝟔
4. 7 + 𝑦 2 𝑤ℎ𝑒𝑛 𝑦 = 3
= 7 + 32
=7+9
= 𝟏𝟔
3𝑥
6.
𝑤ℎ𝑒𝑛 𝑥 = 3
𝑥−1
3 3
=
3−1
𝟗
=
𝟐
PRACTICE QUIZ continued…: Copy the problems in your
notebook then translate the verbal phrase into an expression.
Verbal Phrase
a. 10 more than of a number r
Expression
1
𝑟 + 10
2
b. Twice a number d
2𝑑
c. The difference of 19 and t
19 − 𝑡
d. The sum of a number p and the
square of a number b
𝑝 + 𝑏2
1
2
HOMEWORK #3:
Pg. 18: 3-12, 15-21
REMINDER: turn in your Student Acknowledgment and
Agreement Form!
If finished, work on other assignments:
HW #1: Pg. 5: 3-12, 15-28, 34
HW #2: Pg. 10: 3-6, 11, 14, 15, 18, 22-26