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Given the system

       y > -2

   x + y < 4


Name an ordered pair that IS a solution to this system, name an ordered pair that IS NOT a solutions, and explain how you know that this is a solution point.
while using desmos

 Aug 28, 2018
 #1
avatar+98125 
+1

OK...easy enough....

 

Here's the desmos graph : https://www.desmos.com/calculator/h3ywx9slgp

 

Note  that the point  ( 0,0)  is a solution because   0 > -2   and  0 + 0  < 4

 

Note that the point  (0,5)  is not a solution  because  5 > -2   but   0 + 5  is  not less than 4

 

 

cool cool cool

 Aug 28, 2018
 #2
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0

Thank you!!!

 Aug 28, 2018
 #3
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0

wait actually the second equation was suppose to have a ≤

 Aug 28, 2018
 #4
avatar+98125 
+1

It wouldn't change the answer, much....the graph of  x + y ≤ 4  would be a solid line instead of the dashed line of  x + y < 4

 

The answer for the chosen points would be the same...

 

 

 

cool cool cool

CPhill  Aug 28, 2018
 #5
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+1

oh ok thank you!

Guest Aug 28, 2018

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