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Mathematics 14 Online
mikewwe13:

https://static.k12.com/nextgen_media/assets/8121540-SUM_CR_AL1_SemA_05_UT_DP015_60_003.jpg Which system of linear inequalities is graphed? A. {y ≥ 2x + 1 {x + y ≤ −2 B. {y > 2x + 1 {x + y < −2 C. {y ≤ 2x + 1 {x + y ≥ −2 D. {y < 2x +1 {x + y > −2

Ultrilliam:

I'll just tag voca so she sees this when shes on @Vocaloid

AngeI:

one second, i am trying to figure this out but i do believe it is above my grade level

Zowie:

You just graph the equations. Which ever one matches the one in your question is the correct answer.

Zowie:

You can use Desmos for graphing. I'll show you how to do it then you can o the rest. Okay?

AngeI:

:O cheating

AngeI:

i aprove

Zowie:

So I typed in option D. I got this graph. http://prntscr.com/gqt4mq As you can see in the graph that it has the dotted lines down however, it doesn't have it face/pointing in the right direction. It also has the intersection point right. Go through the rest of them and tell me which one you think it is?

mikewwe13:

maybe it's B ?

Zowie:

http://prntscr.com/gqt5ku C So option C's graph is not only a solid line but it's also pointing in the wrong direction so we know that C can't be it either. http://prntscr.com/gqt5x0 B Option B's graph has the dotted lines correct as well as the intersecting point and the direction of the opening. So option B could be your answer. It's still a good Idea to go through all of the answer choices in case you made a mistake. http://prntscr.com/gqt7hh A Option A's graph has the intersecting point and the direction of the opening right however, the lines are solid, not dotted. So in this case B would be your answer. Hope this helped. ^.^

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