Mathematics
7 Online
OpenStudy (anonymous):
what 2 numbers have the absolute value of 13?
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Parth (parthkohli):
-13 and 13.
OpenStudy (anonymous):
13 is surely one of them
can you guess at the other?
Parth (parthkohli):
Absolute value means distance from zero on a number line, either ways.
OpenStudy (anonymous):
how is it written?
Parth (parthkohli):
\(\Large \color{MidnightBlue}{\Rightarrow |13| = 13,-13 }\)
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OpenStudy (anonymous):
oh heck no
OpenStudy (anonymous):
do you use {} and commas in the answer?
Parth (parthkohli):
Oops
OpenStudy (anonymous):
\(|13|=13\) and \(|-13|=13\)
Parth (parthkohli):
Wait, what?
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OpenStudy (anonymous):
you could write
if \(|x|=13\) then \(x=13\) or \(x=-13\)
OpenStudy (anonymous):
The question says:What two numbers have the absolute value of 13?
Parth (parthkohli):
Can we even determine absolute value of a negative o.O
Parth (parthkohli):
13 and -13 is the answer.
OpenStudy (anonymous):
THANK YOU
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Parth (parthkohli):
|dw:1337865934817:dw|
Distance of 13 units means |13|
OpenStudy (anonymous):
yes, that is the answer to the question but this line
\[\Large \color{MidnightBlue}{\Rightarrow |13| = 13,-13 }\] makes no senses
Parth (parthkohli):
How do we write it then?
OpenStudy (anonymous):
|-7| = ?
OpenStudy (anonymous):
its 7
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Parth (parthkohli):
Yes it's 7
Parth (parthkohli):
Yeah the distance from 0 is 7. CORRECTO
OpenStudy (anonymous):
|x|=-8
OpenStudy (anonymous):
it's an empty set
OpenStudy (anonymous):
there's no solution
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OpenStudy (anonymous):
|y+4|=6