Math/220 Thanks for your help

Algebra
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  • How can you determine if an ordered pair in the rectangular coordinate system is a solution for a system of linear inequalities? 
Jun 25th, 2015

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We can determine if an ordered pair in the rectangular co

Please let me know if you need any clarification. I'm always happy to answer your questions.
Jun 25th, 2015

You can plug in the x and y coordinates for 

You can plug in the X and y coordinates for the point into both equations and determine if the equality is true.For eexample : X + 2 y = -X +4 is point (1,5) is a solution ? Y =x+2 ( check tr first eequation) 5  ? = (1)+2 5?=1 + 2 5? = 3 [ false, the point is not the solution. no need to check the second equation ] Is point ( 1, 3 ) a solution? Y = x + 2 3? = ( 1 ) + 2 3? = 3 [ true, the point satisfies the first equation ] y = - x + 4 [ check the second equation ] 3? = - ( 1 ) + 4 3? = 3 [ true, the point satisfies both equations and is the system's solution ] 

Jun 25th, 2015

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