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pixiedust... why are you an old man....?
I don't think that's actually him it's just his profile pic
Oh haha this is Phil from Duck Dynasty and I forgot to change my picture lol
No no no it's PHIL ROBERTSON! :DDDD
yeah i know its duck dynasty
@itsannalea omg hey
haha its just funny to see an old man with the name "pixie dust" XD
Heyy :)
what is it with u and ur memes??
The 2nd and 3rd are not correct.
cuz i said why r u an old man... lol
i also have pictures of pretty stuff
... :/ thrilling
here is random math work
last 2 are also wrong.
x+2 < -5 to simplify add -2 to both sides x + 2 - 2 < -5 - 2 2 - 2 is 0 on the left side x+ 0 < -5 -2 x+0 is x -5 - 2 is -7 x< -7
x less than 0 (for example) means numbers to the *left* of 0 on the number line. For example, -1 is less than 0. when you say x<0, it means all numbers to the left of 0... all the negative numbers.
The < sign has a small pointy end, and a fat, wide end the "little number" goes on the small pointy end and the big number on the wide, fat end for example 3 < 4 is true because 3 is smaller than 4
if 3< 4 is true, then so is 4 > 3 (notice the fat, wide part of > goes with the 4, and the pointy end with the 3)
If you can't type ≥ use >= (computers use that form)
x ≥ 5 means a solid dot at 5 (because of the = part of the ≥ sign) for x≥5 to be true, the "number" x must be bigger than 5 (or *to the right of 5* on the number line)... To pick which side to draw the line, test a number for example, 6 is 6 ≥ 5 true. YES! so draw the arrow from 5 toward 6 and beyond...
You should re-do 5x + 3 > 4x + 7
yes, now pick the correct graph
Oh the second one!! Because its going beyond 4
But don't I point the arrow towards the <> direction?
yes, the line points to the right. We put an open circle at 4 because x > 4 does not include the 4 (x≥4 would include the 4, and we show that by using a solid dot)
the line is showing you what numbers make x > 4 true it says " all these numbers" and points to the right
Okay! I'm gonna try the second-to-last one. x - 5 > -2. +5 +5 x>3
That would be the 3rd answer
yes.
5 > x + 7. -7 -7 -2>x Then it would be the second one :D
yes. -2 > x is the same as x < -2 the first says -2 is bigger than x the second line says x is smaller than -2 both mean the same thing: x goes with the pointy end of < and -2 goes with the fat end of <
So is it all right now?
btw, it gets tricky for -x > 1 for example people teach the "rule" that if you multiply by -1, you *flip* the > sign in other words: -x > 1 becomes -1* -x < -1*1 which simplifies to x < -1 However, if you *never* multiply or divide by a negative number, you don't need to use that rule. If you run into -x > 1 add +x to both sides (adding or subtracting is always OK) -x + x > 1 + x 0 > 1 + x now add -1 to both sides and you get -1 > x or (the same thing) x < -1 which is what we got if we used the "flip if you multiply by a negative number rule*
all your answers are correct now.
Thank you!!! I was wondering what I would do with a problem like that!! I'm gonna write that down so i will know what to do with problems like that!! Thank you! :)
Thank you again for all your help! :D
You really helped me understand the concept fully. I thank you again
yw
Oooh Duck Dynasty:)
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