Mathematics
15 Online
OpenStudy (kkern00):
use interval notation to express the solution set and graph the solution set on a number line.
6 - (x+5) > 1 - 3x ??
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satellite73 (satellite73):
from logs to inequalities? what is this, on line kitchen sink math course?
satellite73 (satellite73):
distribute the minus sign on the left hand side first
what do you get?
OpenStudy (kkern00):
@satellite73 math assessment for college lol
OpenStudy (kkern00):
@satellite73 6 - x - 5 > 1 - 3x
satellite73 (satellite73):
yes right
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satellite73 (satellite73):
now combine like terms, i.e. compute on the left \(6-5\)
what do you have then ?
OpenStudy (kkern00):
just 1
OpenStudy (kkern00):
i did get to x - 1 > -3x +1 but i was lost from there on
satellite73 (satellite73):
actually it would not be that, it would be \[1-x>-3x+1\]
satellite73 (satellite73):
add \(3x\) to both sides
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OpenStudy (kkern00):
1 + 2x > 1 ?
satellite73 (satellite73):
yes,
now subtract 1 from both sides
OpenStudy (kkern00):
2x > 0 ?
satellite73 (satellite73):
right
now you can either say "done" or you can divide both sides by 2, still get zero on the right
OpenStudy (kkern00):
these two graphs look insanely similar I'm not sure of the difference?
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satellite73 (satellite73):
they sure do
satellite73 (satellite73):
but one difference, the round vs the square bracket
OpenStudy (kkern00):
but i am thinking A?
satellite73 (satellite73):
round for \(x>0\) square for \(x\geq 0\)
OpenStudy (kkern00):
Right i saw that
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satellite73 (satellite73):
so if you have \[x\geq 0\] go for A
if \[x>0\] go for B
OpenStudy (kkern00):
it was technically \[x \ge\]
OpenStudy (kkern00):
i just didn't have that option typing out the question
satellite73 (satellite73):
yeah that is why i did not pick , figured it could be either
OpenStudy (kkern00):
thank you!
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satellite73 (satellite73):
yw