Thebreathoffire Thebreathoffire

20-11-2019
Mathematics

contestada

The point (-2, -1) satisfies which of the following inequalities?

1.)2x + 5y - 1 > 0
2.)-2x + 5y - 1 > 0
3.)5x - 2y + 1 > 0
4.)-5x + 2y + 1 > 0

Respuesta :

mirnaxlunam mirnaxlunam

20-11-2019

Answer:

4.)-5x + 2y + 1 > 0

Step-by-step explanation:

Substitute -2 for x and -1 for y in each inequality and see if true↓

2(-2)+5(-1)>0 → -9>0 FALSE
-2(-2)+5(-1)>0 → -1>0 FALSE
5(-2)-2(-1)>0 → -8>0 FALSE
-5(-2)+2(-1)+1>0 → 9>0 TRUE

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