Inequalities
whats a Inequality ???????
An inequality is a statement that shows the realationship between two ( or more) expressions,
with one of following five signs <, ≤, >, ≥, ≠. Also an inequality is a effective way to show a
relationship between a vaaruable and a number. A inequality could also be between two numbers.
Example 1-
3<5.... Means that 5 is greater than 3.
Example 2-
3 ≤ 5... Means that 5 is greater than or equal to 5.
Example 3-
6>5.... Means that 6 is greater than five.
Example 4-
6 ≥ 5... Means that 6 is greater than or equal to 5.
Example 5-
6 ≠ 5.... Means that 6 is not equal to five.
Try it.
What is larger????
| x>5 |
Answer x is greater than 5. |
| x< 2 |
Answer 2 is greater than x. |
| x< 5 |
Answer 5 is greater than x. |
Inequalities with varibles.....
Example-
3x+5<11
-5<-5 (subtract 5 by both sides.)
3x<6
÷3 ÷3 (divide by both sides to get x by itself.)
x<2 (x is less than 2).
Example-
5x+5>15
5x-5>-5 (subtract 5 from both sides)
5x>10
÷5>÷5 (divide 5 to both sides)
x>2 (x is greater than 2)
Try it.
solve for X??????
| 5x+5>15 |
Answer is X =2 |
| 3x+5>11 |
Answer is X =2
|
| 5x+20<50 |
Answer is X =6 |
Cool Places!!!!
http://www.purplemath.com/modules/ineqsolv.htm
http://www.hostsrv.com/webmab/app1/MSP/quickmath/02/pageGenerate?site=quickmath&s1=inequalities&s2=solve&s3=basic
http://www.sosmath.com/algebra/inequalities/ineq01/ineq01.html
http://dl.uncw.edu/digilib/mathematics/algebra/mat111hb/Izs/inequalities/inequalities.html
http://www.aaamath.com/equ725-inequalities.html
Comments (23)
Anonymous said
at 8:59 pm on Oct 28, 2007
hey joey its melissa remember last year 4 period anyway nice work
Anonymous said
at 7:09 pm on Oct 29, 2007
MR.CARNEY. hi[=
Anonymous said
at 10:01 am on Nov 5, 2007
omg geeeeezzz joey this is soooooooo BRIGHT but anyway.... it is soooooo good but i dont think that you put any links to it or to like other places! just wanted you to like noe that! <3
Anonymous said
at 10:06 am on Nov 5, 2007
theres only examples no defenition. but it's colorful
Anonymous said
at 10:08 am on Nov 5, 2007
its very good but you might wanna add more info and the color kinda hurts my eyes
Anonymous said
at 10:19 am on Nov 5, 2007
nice page, but it should be " What's an inequality, not whats a inequality
Anonymous said
at 1:10 pm on Nov 5, 2007
Useful and colorful, nice!
Anonymous said
at 1:11 pm on Nov 5, 2007
Needs mroe pics
Anonymous said
at 1:11 pm on Nov 5, 2007
jowy. i mean joey. sorry i`m retarded. you page is very colorful && pretty. :]]
Anonymous said
at 1:12 pm on Nov 5, 2007
woops i meant more on my last comment
Anonymous said
at 1:19 pm on Nov 5, 2007
nice colors but you need examples
Anonymous said
at 1:26 pm on Nov 5, 2007
nice but you need pictures and links
Anonymous said
at 1:26 pm on Nov 5, 2007
nice page but u need to give more info on the signs
Anonymous said
at 1:30 pm on Nov 5, 2007
nice page <3 the blue
but x<2 doesn't mean x is equal to 2 it means that x is anything less than 2
Anonymous said
at 2:26 pm on Nov 5, 2007
very nice. you should add some pictures and like it should be more colorful
Anonymous said
at 2:26 pm on Nov 5, 2007
joey u need alot more things in your page like not just examples but definitions and links
Anonymous said
at 2:36 pm on Nov 5, 2007
hey joey to make your page better i think you should add examples and stuff it's already colorful and that's all you need to do. very cool tho.
Anonymous said
at 2:36 pm on Nov 5, 2007
this is really good,
but maybe some links or pictures
Anonymous said
at 2:47 pm on Nov 5, 2007
You should settle on a darker, non-highlighted font. It'd be much easier to read that way. People would focus more on the colors with their eyes than the text itself.
Anonymous said
at 9:09 pm on Nov 6, 2007
nICE JOB jOEY ALL YOU NEED TO DO IS FIX THE WORDS THAT ARE OVERLAPING. kEEp uP THe GOOD wORk!!!
Anonymous said
at 10:04 am on Nov 13, 2007
I linked your page to mine if it is ok with you
Anonymous said
at 10:05 am on Nov 13, 2007
nice jod you use my 2 favorite colors
Anonymous said
at 5:33 pm on Nov 21, 2007
Fine, not fabulous. Spelling errors and formating issues.
3 of 4 points
10.5 of 12 total project points
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