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No, you divide -6 by 2
how do i graph this?
As you can see, "x" is greater than -3.
And also not including -3 because of the circle. :)
negative a open circle and postive a closed one
i got this one x-4<(with line under it) 3. im graphing those two on same line
"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
> is greater than or less than?
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.
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 ____"
not sure i understand this Q: i got this one x-4<(with line under it) 3. im graphing those two on same line
\[x-4 \le 3\] ?
ok. add 4 to both sides.
\[x \le 7\]
you're adding this to the previous graph?
\[x >-3\] 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
lol horrible drawling
Yep. that works ! Yeah, it is difficult to draw on this site. :)
i have to do this for 3 more prblems :/
\[\le\] and \[\ge\] mean closed circles because it is also the equal to . Less than or equal to. .greater than or equal to. the < or > are only less than or greater than, so those are open circles. if you are just subtracting or adding a number you can just pretend the symbol is a = symbol. also for positive multiplication and division. for multiplying or dividing by negative numbers you have to flip the sign over.
thank you, I remember this stuff a very long time ago but i have forgotten.
Yep, it is the little things to remember :) youre welcome!
x + 5 \[\ge\] 2x + 1 and -4x < -8
\[x+5 \ge 2x+1\] and \[-4x<-8\] ?
ok. for that first one. \[x+5 \ge 2x+1\] first, subtract 1 from both sides \[x+4 \ge 2x\] then subtract x from both sides \[4 \ge x\]
for the second one, \[−4x<−8\] divide by -4 both sides. dont forget to flip the symbol \[x>2\]
flip the x>2 to be 2