EXPRESSIONS, EQUATIONS AND
INEQUALITIES
EQ: HOW DO YOU EVALUATE ALGEBRAIC EXPRESSIONS?
Ch. 1.3
Algebraic Expressions
I WILL... EVALUATE ALGEBRAIC EXPRESSIONS. .
BELL WORK
Simplify the expressions
1. 3X + 6X - X + 4Y
2. 2(X + Y) - 2X
3. X(X + W) + XW - W
EQ: HOW DO YOU EVALUATE ALGEBRAIC EXPRESSIONS?
I WILL... EVALUATE ALGEBRAIC EXPRESSIONS.
.
SEATING CHARTS & “REMIND”
HW WB pg.11-12, 2-18 even
Picture day this Thursday/Friday in this class
5 extra credit points on first quiz for everyone on Remind.
EQ: HOW DO YOU EVALUATE ALGEBRAIC EXPRESSIONS?
I WILL... EVALUATE ALGEBRAIC EXPRESSIONS. .
MODELING WORDS WITH ALGEBRAIC
EXPRESSIONS
Write the algebraic expression that models the word phrase seven
fewer than a number t.
T-7
EQ: HOW DO YOU EVALUATE ALGEBRAIC EXPRESSIONS?
I WILL... EVALUATE ALGEBRAIC EXPRESSIONS. .
MODELING WORDS WITH ALGEBRAIC
EXPRESSIONS
Now you try…
1.
Write the algebraic expression for the word phrase two times the
sum of a and b.
2(a+b)
1.
Write the algebraic expression for the word phrase the sum of the
product of a number k and 4, and a number m.
1.
4k+m
EQ: HOW DO YOU EVALUATE ALGEBRAIC EXPRESSIONS?
I WILL... EVALUATE ALGEBRAIC EXPRESSIONS. .
MODELING A SITUATION
You start with $20 and save $6 each week. Write an algebraic
expression that models the total amount you save?
20+6d=
EQ: HOW DO YOU EVALUATE ALGEBRAIC EXPRESSIONS?
I WILL... EVALUATE ALGEBRAIC EXPRESSIONS. .
MODELING A SITUATION
Now you try…
You had $150, but you are spending $2 each day. What algebraic
expression models that situation?
150-2d=
EQ: HOW DO YOU EVALUATE ALGEBRAIC EXPRESSIONS?
I WILL... EVALUATE ALGEBRAIC EXPRESSIONS. .
EVALUATING ALGEBRAIC EXPRESSIONS
What is the value of the expression for the given values of the
variables?
7(a+4) + 3b – 8
a=-4 and b= 5
7a+28+3b-8=7a+20-3b
EQ: HOW DO YOU EVALUATE ALGEBRAIC EXPRESSIONS?
I WILL... EVALUATE ALGEBRAIC EXPRESSIONS. .
EVALUATING ALGEBRAIC EXPRESSIONS
Now you try…
EQ: HOW DO YOU EVALUATE ALGEBRAIC EXPRESSIONS?
I WILL... EVALUATE ALGEBRAIC EXPRESSIONS. .
SIMPLIFYING ALGEBRAIC EXPRESSIONS
Combine like terms. What is a simpler form of each expression?
EQ: HOW DO YOU EVALUATE ALGEBRAIC EXPRESSIONS?
I WILL... EVALUATE ALGEBRAIC EXPRESSIONS. .
SIMPLIFYING ALGEBRAIC EXPRESSIONS
Now you try…
EQ: HOW DO YOU EVALUATE ALGEBRAIC EXPRESSIONS?
I WILL... EVALUATE ALGEBRAIC EXPRESSIONS. .
CLOSURE
Describe what an algebraic expression is? What are the parts of an
algebraic expression? How can algebraic expressions be used to
represent real-world situations?
EQ: HOW DO YOU EVALUATE ALGEBRAIC EXPRESSIONS?
I WILL... EVALUATE ALGEBRAIC EXPRESSIONS. .