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Mathematics 22 Online
OpenStudy (anonymous):

Question 9 (Multiple Choice Worth 1 points) (01.05) To which graph does the point (−1, −4) belong? y ≤ −x + 4 y ≤ −x − 2 y ≤ 2x − 3 y ≤ 4x + 1

OpenStudy (ranga):

Put x = -1 and y = -4 in each of the inequality and see which one is true.

OpenStudy (anonymous):

I did and 3 of them come to be true

OpenStudy (ranga):

They are not asking to which inequality is (-1, -4) a solution.

OpenStudy (ranga):

You graph the four lines by replacing the inequality with an equal sign. So the question is on which line does (-1, -4) lie?

OpenStudy (ranga):

And I don't see it falling on any line.

OpenStudy (ranga):

Did you copy the question correctly?

OpenStudy (anonymous):

yes its copy and pasted directly

OpenStudy (ranga):

It does not satisfy the third inequality. But it satisfies all the other 3 inequalities. The point does not fall on any of the lines. So I am not sure what they are asking.

OpenStudy (ranga):

To which graph is the point (−1, −4) NOT a solution? may be the intended question.

OpenStudy (anonymous):

yes it must be

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