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OpenStudy (anonymous):
No, you divide -6 by 2
OpenStudy (anonymous):
x>-3
OpenStudy (anonymous):
Correct :)
OpenStudy (saifoo.khan):
\[\checkmark\]
OpenStudy (anonymous):
how do i graph this?
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OpenStudy (saifoo.khan):
|dw:1332341729422:dw|
OpenStudy (saifoo.khan):
As you can see, "x" is greater than -3.
OpenStudy (mysesshou):
And also not including -3 because of the circle. :)
OpenStudy (anonymous):
negative a open circle and postive a closed one
OpenStudy (saifoo.khan):
Oh right.
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OpenStudy (anonymous):
i got this one x-4<(with line under it) 3. im graphing those two on same line
OpenStudy (mysesshou):
"greater than equal to " or "equals" is a closed circle, including the number at the circle.
"greater than" means open circle because it is only up to the number not including
OpenStudy (anonymous):
> is greater than or less than?
OpenStudy (mysesshou):
depends where the numbers and x are.
for x > -3 it is read x is greater than -3.
Imagine it like an alligator mouth. it wants to eat the most, so the x is the greater than.
OpenStudy (mysesshou):
if it was written x < -3 then it is "x is less than -3" because the alligator is going for the -3 then it is read as the opposite for the "x is ____"
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OpenStudy (mysesshou):
not sure i understand this Q:
i got this one x-4<(with line under it) 3. im graphing those two on same line
OpenStudy (mysesshou):
oooohh.
OpenStudy (mysesshou):
\[x-4 \le 3\] ?
OpenStudy (anonymous):
yeaa
OpenStudy (mysesshou):
ok. add 4 to both sides.
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OpenStudy (mysesshou):
\[x \le 7\]
OpenStudy (mysesshou):
you're adding this to the previous graph?
OpenStudy (anonymous):
yes
OpenStudy (mysesshou):
\[x >-3\] and
\[x \le 7\]
what you do is open circle for -3 because it is not including it. filled in circle for the 7 because it is including it.
you can rewrite it to
\[-3<x\]and
\[x \le 7\]
and then combine it
\[-3<x \le 7\]
so draw the line. then put a open circle on -3 and a filled in circle on 7. then connect a line between them.
ok?