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eimsori [14]
3 years ago
15

What is an absolute value? What does it do? When would we need to use an absolute value

Mathematics
2 answers:
Ipatiy [6.2K]3 years ago
8 0
<span>Absolute Value is the magnitude of a real number without regard to its sign, in other words </span>Absolute value makes everything inside of it positive. The absolute value is used in the real world to define the DIFFERENCE or change from one point to another.<span> A good example I found was that if the everybody is going 55 mph and you are going 70  or 40 mph you will most likely get a ticket.  It matters because the difference between you and everybody else is 15 mph.  Not -15 or +15 but 15. Absolute value plays it's part into the equation because you don't need it to be +15 or -15 but plain 15.
Hope This Helps!</span>
Nana76 [90]3 years ago
3 0
Absolute Value Absolute Value means ...

... only how far a number is from zero:

<span> <span><span> </span> <span> <span> "6" is 6 away from zero,
and "−6" is also 6 away from zero. So the absolute value of 6 is 6,
and the absolute value of −6 is also 6 </span> </span> </span></span>

More Examples:

<span><span>The absolute value of −9 is 9</span><span>The absolute value of 3 is 3</span><span>The absolute value of 0 is 0</span><span>The absolute value of −156 is 156</span></span> No Negatives!

So in practice "absolute value" means to remove any negative sign in front of a number, and to think of all numbers as positive (or zero).

Absolute Value Symbol

To show that we want the absolute value of something, we put "|" marks either side (they are called "bars" and are found on the right side of a keyboard), like these examples:

<span> <span><span> |−5| = 5 |7| = 7 </span> </span></span> Sometimes absolute value is also written as "abs()", so abs(−1) = 1 is the same as <span>|−1| = 1</span>
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1 year ago
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