Question

http://prntscr.com/2268g7

Answer 1

If you wanted, you could test that out without graphing it by simply plugging the points into the inequality and testing each point. The point that makes the inequality false is not part of the solution.

Answer 2

Or you could graph the inequality on your graphing calculator and figure it out that way. If you don't have a graphing calculator, use http://www.desmos.com

Answer 3

could you explain how to plug in the points into the equation?

Answer 4

Okay, so each point is in the form (x,y)

Answer 5

Which means plug the first number in for x. Plug the second number in for y.

Answer 6

So for the point \(\color\green{(-1,0)}\), when you plug it in to \(\color\green{y} > |\color\green{x} + 1|-1\)

You will end up with
\(\color\green{0} > |\color\green{-1} + 1| - 1\)

Simplify that and figure out whether it is true or false.

Answer 7

If it is true, then move on and try the next point. If it is false, then we have found the point of interest.

Answer 8

i got A as the answer because it was false. Can you confirm this?

Answer 9

So \(0 > -1\) is false? Are you sure about that?

Answer 10

Are you saying that 0 cannot be greater than a negative number?

Answer 11

o no i messed up

Answer 12

When in doubt, make a number line.

Answer 13

Okay, so you should at least know how to test all the other points.

Answer 14

i tried but still didnt get a correct answer

Answer 15

i got C

Answer 16

Correct. C is not a part of the solution of the given inequality.

Answer 17

thanks

Answer 18

can you confirm if i got this right. I got 2 is bigger than 2.

http://prntscr.com/226pak

Answer 19

So you are given y < 2|x - 1| - 2 and you are testing the point (2, 3)

Here's what I get:
3 < 2|2 - 1| - 2
3 < 2|1| - 2
3 < 2(1) - 2
3 < 2 - 2
3 < 0

False

Answer 20

What did you get for that one? Show your steps.

Answer 21

This time they want the point that will make the solution TRUE

Answer 22

o your right i messed up

Answer 23

Try not to mix up the x's and y's

Answer 24

ive tried and i still cant find an answer

Answer 25

Keep trying

Answer 26

I think its A i think..

Answer 27

@mathkid1

the proper thing to do is show your steps. Don't just say the answer is A. Show me why you have chosen A.

Answer 28

i plugged in the points and got 3y and -1

Answer 29

No, show me the full algebra steps you performed to arrive at A as the possible answer.

Answer 30

1-1=0X2=0-2=-2

Answer 31

That does not look like correct steps to me.

Answer 32

First off, there's no equal sign

Answer 33

Secondly, your steps should look similar to the steps I posted above for the previous problem.

Answer 34

can you work out choice A for me please. that might help

Answer 35

I could have sworn I did that already. Maybe you just didn't understand it

Answer 36

that was my 1st problem i think

Answer 37

No, it was Part A of the problem you are currently working on

Answer 38

And even if it isn't the steps are still similar

Answer 39

ok i think its D because the numbers looked equal when i plugged them in

Answer 40

"because the numbers looked equal"

We're not looking for what's equal bro

Answer 41

can you just tell me the answer lol so i can understand it

Answer 42

Telling you the answer won't help you understand it. Only understanding the process will help you understand.

Answer 43

Can you tell me then explain in?

Answer 44

I will not do that. Go back over everything I already explained to you....until you understand it.

Answer 45

i plug in all the numbers but no set give m a correct equation