Mathematics
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OpenStudy (anonymous):
ALGEBRA 2 HELP EASY! (I GIVE MEDALS!) What is the solution set in interval notation for |3x + 1| <= 7
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OpenStudy (anonymous):
Your an idiot this is common sense
OpenStudy (lxelle):
3x+1 =-7 and 3x+1=7
solve it from there.
OpenStudy (anonymous):
I got (-infinity, infinity) as the answer, but it was marked wrong.
OpenStudy (anonymous):
@LXelle
OpenStudy (anonymous):
Do you guys like tacos
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OpenStudy (lxelle):
How did you get infinity? Loll.
OpenStudy (anonymous):
WHY ARE YOU IGNORING ME
OpenStudy (anonymous):
for the first one I got x <= 2 and x >= -8/3
OpenStudy (anonymous):
Sorry for calling you an idiot
OpenStudy (anonymous):
and when you graph that it takes up the entire line
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OpenStudy (anonymous):
Elmo's sorry
OpenStudy (anonymous):
@LXelle
OpenStudy (anonymous):
I hate acacia Brinkley tbh
OpenStudy (anonymous):
same lmao
OpenStudy (anonymous):
dont feel like changing my pic tho
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OpenStudy (anonymous):
I'm in class rn pretending to do math
OpenStudy (anonymous):
lmao
OpenStudy (anonymous):
Some kids beat boxing across the room
OpenStudy (anonymous):
Can you help me with a math problem by chance
OpenStudy (anonymous):
Lol sure
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OpenStudy (lxelle):
No, we are not finding the domain. We are just finding the range of x.
OpenStudy (lxelle):
What you got there is correct.
OpenStudy (anonymous):
What would the solution set in interval notation be for -|3x + 5| < 4?
OpenStudy (lxelle):
Do like what you did just now.
OpenStudy (anonymous):
so I got x > 1/-3 and x < -1/3 is that right?
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OpenStudy (anonymous):
So how would we write that in interval notation?
OpenStudy (lxelle):
x= -3 and x=-1/3 check your answers up there.
OpenStudy (anonymous):
Right sorry!
OpenStudy (anonymous):
So would we write that as [-3,-1.3]?
OpenStudy (anonymous):
*-1/3
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OpenStudy (lxelle):
It would be x>-13 and x>-3
OpenStudy (anonymous):
-13?
OpenStudy (lxelle):
SORRYY I MEAN -1/3
OpenStudy (anonymous):
Oh lol it's fine
OpenStudy (anonymous):
Wouldn't it be x < -1/3? or do you flip the sign when dividing a negative number?
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OpenStudy (lxelle):
-3x-5<-4, -3x<-4+5, -3x<1, x>-1/3
OpenStudy (anonymous):
Right!
OpenStudy (anonymous):
But how would we write the final answer in interval notation?
OpenStudy (anonymous):
@LXelle
OpenStudy (lxelle):
Not sure with that. Might not want to confuse you. Sorry.
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OpenStudy (anonymous):
Okay it's fine! Thanks for your help though!
OpenStudy (lxelle):
:))