25-03-2020
Mathematics

contestada

Is (-4,2) a solution of 4x+5y≤−7

Respuesta :

altavistard altavistard

26-03-2020

Answer:

No

Step-by-step explanation:

Substitute -4 for x and 2 for y in 4x+5y≤−7. Is the resulting inequality true or not?

4(-4) + 5(2) ≤ −7

or

-16 + 10 ≤ −7, or

-6 ≤ −7, which is False. No, (-4, 2) is not a solution of 4x + 5y ≤ −7.

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