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Mathematics 20 Online
OpenStudy (xmoses1):

I don't get this :(

OpenStudy (xmoses1):

OpenStudy (anonymous):

what is x do you know?

OpenStudy (xmoses1):

Nope dont have a clue

OpenStudy (anonymous):

ok then

OpenStudy (anonymous):

A is my best guess but i would wait for someone to help with this sorry bro

OpenStudy (xmoses1):

That is ok thanks Awesome

OpenStudy (whpalmer4):

You have a bunch of answer choices which can be further simplified. For example: \[2x-4>6\]Can you change that to be \(x > \text{num}\)?

OpenStudy (whpalmer4):

Start by moving any "loose" numbers over to the other side.

OpenStudy (xmoses1):

Yes add 4 to the 6

OpenStudy (xmoses1):

Then divide by two

OpenStudy (whpalmer4):

Good, so that gives us \[2x>10\]Now what can you do?

OpenStudy (whpalmer4):

Very good, that gives you \[x>5\]

OpenStudy (xmoses1):

yes

OpenStudy (whpalmer4):

Repeat that process with the rest of your answer choices (or as many as necessary) until you find the pair that describes the number line...

OpenStudy (xmoses1):

Ok! thanks for pointing that out to me whpalmer :)

OpenStudy (whpalmer4):

you have open circles, so that means the endpoints are not included. With closed/filled circles, we would have something like \[x \ge 5\]

OpenStudy (xmoses1):

oh yeah i forgot about that

OpenStudy (whpalmer4):

not that we have any answer choices here where we have to worry about that, but it'd be like those sneaky SOBs to put some in there to trap the unwary, eh? :-)

OpenStudy (xmoses1):

Yeah i know exactly what you mean :) thanks again!

OpenStudy (whpalmer4):

you're welcome. good luck!

OpenStudy (xmoses1):

Thanks :D

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