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ave you ever noticed

thermometer?H  Thermometer was instrument

used for to measure temperature

some essence. At measurer were

using thermometer for restate

temperature under the 0oC was

using negative (mines) sign. At

pressure I atmosfer, the

temperature of boiling water

100oC and freezes at a

temperature 0oC. if water turn

into ice, the temperature was

less then 0oC, for example ice

have temperature -7 oC it’s

means ice temperature mentined

(will known) 7 oC under the zero

(0).

Before you have studying

material this chafter, you’d

better try to comperhanded

return about integers. Root of number, square ropt from two

numeral or more. Comperhanded

material it will be very useful in

studying about integer.

A.Integer

1. Understanding Integer Try you rembered return at primary school about integers.

Integers is 0, 1, 2, 3, …. If integers was illustrated on a numeral/

number line. What do you have?

Some one was standing on terraced floor. He has changed

one straight line what to connect with the terraced floor. He is

standing in a point and He name’s zero point.

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Line at compertaments in front of it He gives numbers 1, 2,

3, 4, …. If he has advancing four’s walk to front of he will standing

at number +4, if he will retreat two steps backward. He stand at

number’s +2 he retreat’s again 3 steps backward. What a number

is he standing now? At a number is he standed now? If will retreats

again 1 steps backward.

Acaution is position 4 steps front of from zero point in the

state with +4. Likewise position 2 steps front of in the state with

+2. Therefore position 4 stepsward from zero point. Otherwise with

-4. Now, position 2 steps backward from zero point in the state

with -2. pair number pair numeral’s like as above if collected will

be form integer number’s. Sign + at integers usually does not write

set of all integers. Set of integers and denotes with B = {…, -3, -2,

-1, 0, 1, 2, 3, … }. Number integers consist of set of negative

integer {…, -2, -1, 0, +1, +2, …}, zero (0) and set of positive

integers { 1, 2, 3, ….}.

2. Use integer of Daily Life Every Day

Acaution the picture 1 submarine used for interest guard,

war, and rescue operations. Therefore, diver and submarine has

need to know sea depth levels, if sea water surface in the state

with 0 meters. Then high above sea water surface otherwise with

positive numeral’s and deft under the sea water surface was in the

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state with negative (minus) numeral. For example in defth 10

meters under the sea water surface is writing -10m.

3. Location Integers at Numeral Line’s

At numeral line’s location integer can be otherwise is.

At above numeral line’s, number’s 1, 2, 3, 4, 5 …. Called is

positive integer’s. where as number’s -1, -2, -3, -4, …. Called is

negative number’s.

Integers positive’s situated at on the right from zero whereas negative integer’s situated on the of left from zero.

4. Declare Relationship between The Two

Integers

Acaution above numeral line’s.

At the numeral line’s, increasingly to the right situated

numeral greater value it, it’s opposite increasingly to the left

situated numeral, vanishingly small value it so in the say it is for

each p, q integer apply :

a. If p situated on the right q, so p > q.

b. If p situated on the left q, so p < q.

For example. At a number line’s, number -3 situated on the

left number 2 so writing -3 < 2 or 2 > -3. Number -3 situated on

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the right -5 so write -3 > -5 or -5 < -3. If two above to joined so can

-5 < -3 or 2 > -3 > -5.

Answer the following questions!

1. If sea water surface in the state with 0 meter, write location a

place 175 meter under the sea water surface!

2. With used number line’s. 5 number a location on the left -2.

3. Unknown a floor ladder is owning 10 stair.

Nyoman and Santi was being at second stair. Than they are to

go down 5 ladder at stair. How much at stair are they now?

4. To certain right or wrong the question is it

-4 < -8

-2 > -102

5. To certain value x what fulling

x ≤ -1. or S = { -6, -5, -4, -3, -2, -1, 0, 1, 2}