Question 379329
{(x, y): (absolute value sign)x (absolute value sign) + ( abs value) y (abs value) = 1} what is the domain of this relation and is it a function?
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|x|+|y| = 1
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Domain?
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|x| = 1-|y|
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|y| is always >= 0
So |x| <= 1
So -1 <= x <=1 is the domain.
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Range?
The same arguments as above apply to |y|
So -1 <= y <= 1 is the range
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cheers,
Stan H.