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Re: anyone good at math here i think im doing this right but idk

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SammieStupidSavage is not online. SammieStupidSavage
Joined: 27 Jan 2014
Total Posts: 1224
07 Feb 2017 01:51 PM
i have 2 solve systems of inequalities but im dumb so idk if im doing this stuff right


k
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NhlCh33z3h is not online. NhlCh33z3h
Joined: 21 Sep 2014
Total Posts: 3146
07 Feb 2017 02:26 PM
u mean like y>3x+7?


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SammieStupidSavage is not online. SammieStupidSavage
Joined: 27 Jan 2014
Total Posts: 1224
07 Feb 2017 02:28 PM
year but theres 2 of those things and we have to shade them in and stuff thats what i dont get


k
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ebenton95 is not online. ebenton95
Joined: 06 Nov 2011
Total Posts: 9671
07 Feb 2017 02:50 PM
the shading is on a graph right?
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SammieStupidSavage is not online. SammieStupidSavage
Joined: 27 Jan 2014
Total Posts: 1224
07 Feb 2017 02:58 PM
yes @ebenton


k
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Deadiyroses is not online. Deadiyroses
Joined: 15 May 2016
Total Posts: 1455
07 Feb 2017 02:58 PM
If >, shade above the line
If < shade below the line
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SammieStupidSavage is not online. SammieStupidSavage
Joined: 27 Jan 2014
Total Posts: 1224
07 Feb 2017 03:00 PM
theres 2 equations/lines though so do i shade in the area where it is true for both?


k
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Deadiyroses is not online. Deadiyroses
Joined: 15 May 2016
Total Posts: 1455
07 Feb 2017 03:01 PM
Here's what I do. I draw little lines above or below the link e depending on > or <. Then I shade it the spot where both lines are and that's the solution
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SammieStupidSavage is not online. SammieStupidSavage
Joined: 27 Jan 2014
Total Posts: 1224
07 Feb 2017 03:02 PM
here ill show u what i did hold on a minute ik im dumb lol


k
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SammieStupidSavage is not online. SammieStupidSavage
Joined: 27 Jan 2014
Total Posts: 1224
07 Feb 2017 03:02 PM
here ill show u what i did hold on a minute ik im dumb lol


k


k
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ebenton95 is not online. ebenton95
Joined: 06 Nov 2011
Total Posts: 9671
07 Feb 2017 03:13 PM
i believe all you do is treat the inequality like an equality to find what the lines are going to be, and then shade in/use a dotted or solid line depending on what the inequality sign is (shade above for greater, shade below for less, solid line for greater/less than or equal, dotted for just greater/less than)
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NhlCh33z3h is not online. NhlCh33z3h
Joined: 21 Sep 2014
Total Posts: 3146
07 Feb 2017 03:20 PM
Shading is really easy. Here's a trick my teacher taught.

Ex: y<4x+9

Once you graph the line, you plug in (0,0) for the x and y values, giving you
0<0+9. Because this is a true statement (0<9), you would shade the side of the line which has the (0,0) point on. If you have a problem like y<6x, you couldn't use that trick as the y-point is already 0; use (1,1), and do the same method.

Ex:

y<6x

1<1

This is false (greater than or equal to (then vice versa) would be true. So shade the part of the graph which point (1,1) is NOT on.



It's easier to hear it than to read it, so sorry.
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kevinjiang91 is not online. kevinjiang91
Joined: 15 Dec 2013
Total Posts: 7525
07 Feb 2017 03:47 PM
### ARE U UNDER THE AGE OF 13 LOL ALGEBRA 1
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