TODAY IN ALGEBRA…

CH.1 TEST TODAY!

ALL HW DUE TODAY and Notebook check today!

Learning Goal: 2.1 You will graph and compare positive and negative numbers

CHAPTER 1 TEST You have 50 minutes to complete your test. Are you prepared? Pencil? Calculator? No notes allowed. If you finish early:

Finish any missing assignments. Work on something quietly as the rest of

your fellow classmates complete their quizzes.

NO TALKING. STAY IN YOUR SEATS. Turn in any missing or corrected assignments.

ALL HOMEWORK:

DUE TODAY!

If finished, work on other assignments:

HW #1: Pg. 5: 3-12, 15-28, 34HW #2: Pg. 10: 3-6, 11, 14, 15, 18, 22-26HW #3: Pg. 18: 3-12, 15-21HW #4: Pg. 24: 3-8, 12-28HW #5: Pg. 38: 1-8, 12-14, 17, 25HW #6: Pg. 46: 3-5, 10-13, 15, 16 use graph paper!

2.1: INTEGERS AND RATIONAL NUMBERS:

0 1 2 3 4 5 6 7 8 9-1-2-3-4-5-6-7-8-9

4>0 2>−5 −1>−6

2.1: INTEGERS AND RATIONAL NUMBERS:Copy the following table into your notebooks:

REAL NUMBERS

RATIONAL NUMBERS

INTEGERS

WHOLE NUMBERS

…−√2,−1 ,− 12,0 ,1 ,

34,√3 ,𝜋…

…−1 ,−12,0 ,34,1 ,2…

…−3 ,−2 ,−1 ,0 ,1 ,2 ,3 ,…

0 ,1 ,2 ,3 ,4 ,5…

Incl

udes

neg

ative

nu

mbe

rs

Incl

udes

num

bers

that

can

be

writt

en a

s a

frac

tion

Incl

udes

nu

mbe

rs th

at

cann

ot b

e w

ritten

as

a fr

actio

n

EXAMPLE: Tell whether each number in the list is a whole number, integer, rational number. Then order the numbers from least to greatest.

REAL NUMBERS

RATIONAL NUMBERS

INTEGERS

WHOLE NUMBERS

𝑎 .3 ,−1.2,−2,0𝑏 .16,1.75 ,−

23,0

−2 ,−1.2 ,0 ,3 −23,0 ,16,1.75

I R W WR W R R

WI

R

PRACTICE: Tell whether each number in the list is a whole number, integer, rational number. Then order the numbers from least to greatest.

REAL NUMBERS

RATIONAL NUMBERS

INTEGERS

WHOLE NUMBERS

𝑎 .4.5 ,−34,−2.1 ,0.5𝑏 .3.6 ,−1.5 ,−0.31 ,−2.8

−2.1 ,−34,0.5 ,4.5

−2.8 ,−1.5 ,−0.31 ,3.6

R R R RR R R R

WI

R

2.1: INTEGERS AND RATIONAL NUMBERS: ABSOLUTE VALUES

-Number of units away from zero-

0 1 2 3 4 5 6 7 8 9-1-2-3-4-5-6-7-8-9

𝐸𝑋 1 :|−6|=6 𝐸𝑋 2 :|3|=36 3

PRACTICE: For all the following problems, evaluate the expressions when

0.75 1.00 0 1.75

1.50 2 .25 1.50 1.50