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Mathematics 10 Online
OpenStudy (anonymous):

Help? I will fan and give medal. Which of these ordered pairs is a solution to the inequality 2x + y > – 4? (–1, –1) (0, –5) (4, –12) (–3, 0)

OpenStudy (anonymous):

Subsstitute the values into the equation and solve. That will give you the solution.

OpenStudy (the_fizicx99):

Plug in to see suppose i got d out of random 2(-3) + 0 > -4 -6 + 0 > -4 is -6 greater than -4 ?

OpenStudy (anonymous):

-6 is less than -4 @tHe_FiZiCx99

OpenStudy (the_fizicx99):

Yup so thats no it. Can you take it from here?

OpenStudy (anonymous):

uhmm...I'm still a bit confused. @tHe_FiZiCx99

OpenStudy (the_fizicx99):

Just plug in those values (x,y) and you'll see its -4 is greater than

OpenStudy (anonymous):

plug in the values and treat the inequality sing like an equal sign of that helps you understand a bit better

OpenStudy (the_fizicx99):

Stuck?

OpenStudy (anonymous):

yeah @tHe_FiZiCx99

OpenStudy (the_fizicx99):

Ok, suppose I gave you (7,9) the 7 is the x and the 9 is the y (x,y) you plug those values into the equation. 2x + y > – 4 2(7) + 9 > -4 ? 14 + 9 = 23 > -4 23 is greater than -4 therefore its true!

OpenStudy (anonymous):

OOOOOOH! I think I get it! @tHe_FiZiCx99

OpenStudy (the_fizicx99):

:D

OpenStudy (anonymous):

is the answer (-1, -1) ?? because -3 > -4 @tHe_FiZiCx99

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