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SOMEONE PLEASE HELP ME!!! I REALLY NEED SOME HELP!!!

Which of the following points is a solution of the inequality y < - lxl?

A. (1, -2)
B. (1, -1)
C. (1, 0)​

1 Answer

1 vote

Answer:

A. (1, -2)

Explanation:

We can substitute the variables of x and y into the inequality of
y < -|x|.

Let's start with A, -2 being y and 1 being x.


-2 < - |1|

The absolute value of 1 is 1, and negating that gets us -1.


-2 < -1

Indeed, -2 is less than -1! So A is a solution to the inequality.

Let's test the rest of them, just in case.

For B:


-1 < -|1|

Absolute value of 1 is 1, negating it is -1.


-1<-1

-1 is EQUAL to -1, not less than it, so is not a solution to the inequality.

Let's try C.


0 < -|1|

Absolute value of 1 is 1, negating it is -1.


0 < -1

0 is GREATER than -1, so that is not a solution to the inequality.

Hope this helped!

User Blakcat
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