gymnast8508 gymnast8508
  • 13-10-2018
  • Mathematics
contestada

Is (1,2) a solution of the system y>2x and x+y< 3

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jimthompson5910 jimthompson5910
  • 13-10-2018

Answer: No it is not a solution

Why not? Because it doesn't make the first inequality true. Replace x with 1 and y with 2

y > 2x

y > 2*1 ... replaced x with 1

2 > 2*1 .... replaced y with 2

2 > 2 .... which is a false inequality statement since 2 is not larger than itself

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tramserran
tramserran tramserran
  • 13-10-2018

Answer: NO!

Step-by-step explanation:

x = 1, y = 2

 y > 2x

 2 > 2(1)

 2 > 2

 False

Sine it already failed, no need to check the other equation.

Answer Link

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