Help! What is it called when a number has two vertical lines on either side of it?
924806
It is called absolute value.\n\nIt basically means that if you drew out a number line, how many spaces would the number between the lines be from zero?\n\nFor example, |4| is 4, because 4 is 4 places away from 0\n\nand |-27| is 27, because negative 27 is twenty seven places away from zero\n\nkeep in mind, that an absolute value equation can never equal a negative number
851015
use the number line concept
5376
first line is "a=b", therefore a-b = 0\nso when it says "divide both sides by a-b", it really means "divide both sides by 0, which results in some probably invalid, and definitely not finite, values on each side"
579155
The first one isn't, because it's undefined when x=4 (assuming the (x-4) is the denominator, not just the x)\n\nThe second one is; it's a horizontal line with no breaks or holes.
886281
I GOT THIS ANSWER!! When you write it as a roman numeral!!
608711
i think it's a parabola.. im not sure. u should try plotting it on a graph.. substitute  the x and y values and see what form comes out..
733444
horizontal is left to right \nvertical is up and down
505251
As the others say....x horizontal and y vertical. Try to remember the order from the alphabet. It may help you remember.
746423
If from left to right gets bigger or more positive, and from down to up gets bigger or more positive regarding numeric values, then it makes sense to label the quadrants in that manner.  You start with all positive values in the first quadrant.  Then y values are positive and x values are negative in the second.  Then all values are negative in the third.  Last, y values are negative and x values are positive.\nThe assumption is that x is on the horizontal axis and y is on the vertical axis.
1119147
If you are referring to the 1:0 (0:0) format, the first set of numbers is the final score and the second set is the half time score.  This was driving me crazy until I found the answer.
935181
In all my years as a mathematician, I have never come across a symbol to denote "skew lines."  There may BE one, but I have never seen it.  Nor would it be a particularly helpful symbol, in my opinion, since "most" lines are skew...the symbols appear to be reserved for "special cases" (e.g. coplanar, parallel lines).\n\nBe sure to visit the link below for greater insight.\n\nHope this helps!
889039
They are called special characters. They are created by holding down the "alt" key and entering a series of numbers. \n\nFor instance:\n\n Alt + 1 =☺\n Alt + 3 = ♥\n Alt + 4 = ♦\n Alt + 251 = √\n Alt + 0134 = †\n Alt + 0189 = ½
980979
names on vertical \nDistance on horizontal\n\nFirst and second jumps could be drawn in two different colours.
858560
It's called a "palindrome", like racecar... r-a-c-e-c-a-r. Cool, huh?\nAn "ambigram" can be read upside down the same. An example would be "pod" (like in a pea pod). Tilt your head upside down and see what I mean... : )
527962
The $ sign is always before the number.\nOnly when pounds or rupees or pesos or yuan or yen... are spelt out, then they are behind the number.
163849
It is called a Hendecagon.\n\nName Sides \nTriangle (or trigon) 3 \nQuadrilateral (or tetragon) 4 \nPentagon 5 \nHexagon (or sexagon) 6 \nHeptagon (avoid "septagon") 7 \nOctagon 8 \nEnneagon (or "nonagon") 9 \nDecagon 10 \nHendecagon (avoid "undecagon") 11 \nDodecagon (avoid "duodecagon") 12 \nTriskaidecagon 13 \nPentadecagon (or quindecagon) 15 \nHeptadecagon 17 \nEnneadecagon 19 \nIcosagon 20 \nTriacontagon 30 \nHectagon (avoid "centagon") 100 \nChiliagon 1000 \nMyriagon 10,000
723136
<3\n\nIt's an arrow pointing to the left, followed by the number 3.  Enjoy!