System
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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Inequalities | Less than or equal to: closed dot.
greater than or less than: open dot.
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Compound sentence | 4<x and x<8
n is a negative integer and n >-5
A<12 or A<65
x=9 or x=-3
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Properties of Inequality | Addition: If a<b then a=c < b+c
Multiplication: If a<b and c>0 then ac<bc
or If a<b and c<0 then ac>bc
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Solving inequalities | 2m+57>113
-57 -57
2m>56
m>28
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Solution set for a system | {y=7x-3
{y=6x+2
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Two linear equations | {6x+12=5
{ y=2-10x
6x+12(2-10x)=5
6x+24-120x=5
-114x=-19
x=1/6
y=2-10(1/6)
y=2-10/6
y=2/6 =1/3
{1/6, 1/3}
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Linear combinations with sysy=tems of two equations | { x+y=9
{ 2x-y=2
__________
3x =11
x =11/3 or 3 2/3
11/3+y=9
y=16/3
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Inverse matrix theorem | If ad-bc not equal 0, the inverse of [a b]
[c d]
[d/ad-bc -b/ad-bc]
[-c/ad-bc a/ad-bc]
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
sydneywisniewski
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