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Mathematics 21 Online
OpenStudy (anonymous):

Which point lies in the solution set for the following system of inequalities? x + y > 2 2x − y < 6 (3, −1) (0, 0) (4, 1) (1, 3) ??????????

jimthompson5910 (jim_thompson5910):

Take each answer choice, one at a time, and plug them into each inequality

jimthompson5910 (jim_thompson5910):

Checking choice A x + y > 2 3 + (-1) > 2 3 - 1 > 2 2 > 2 Since that last inequality is false, (3,-1) does NOT work

jimthompson5910 (jim_thompson5910):

So choice A is NOT the answer

OpenStudy (anonymous):

ok

jimthompson5910 (jim_thompson5910):

do the same with the other answer choices and rule out any choices you can remember, the ordered pair has to work with BOTH inequalities

OpenStudy (anonymous):

what about the second one?

jimthompson5910 (jim_thompson5910):

second inequality or choice B?

OpenStudy (anonymous):

sorry haha choice b wouldnt be it either correct?

jimthompson5910 (jim_thompson5910):

you are correct

OpenStudy (anonymous):

choice D? right

jimthompson5910 (jim_thompson5910):

yes, you are 100% correct You can verify this by graphing (what you see attached)

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