The assertion is not true. Consider the function f(x) =|x - 3|, which is the distance of x from the point 3. The function is defined for all x but the absolute value is required.
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first, you have to divide. Then, you have to add X to what you got when you divided. After that, you shove it up your butt and cry
Absolute value can be defined as the distance from the expression to zero. Therefore, the absolute value of 13 is 13.
x does not equal -1, because if x is minus 1, x plus 1 is zero and division by zero is not defined.
Well, honey, the absolute value of a number is always positive, no matter what. It's like a magnet that repels negativity. So, no, it can't be both positive and negative at the same time. It's just not how math works, sweetie.
That is because of the way the absolute value is defined. The absolute value of a positive number is positive, the absolute value of a negative number is also positive. The absolute value of zero is zero. Even in the complex numbers, the absolute value is defined in such a way that it is a real and positive number.