Question 208477
I am trying to figure out a question that has 2 parts. The question is as follows: 
A) What is the domain and range of the relation x +[y] = 3?
I assume your [y] means absolute value of y.
If that is correct you get:
|y| = -x+3
Since |y| is never negative you have 
-x+3 >= 0
-x >= -3
x <= 1 (That is the domain)
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The domain is All Real Numbers.
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b) What is the domain and range of the function y = 2x^2-3? 
Domain: All Real Numbers
Range: All Real Numbers >= -3.
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Cheers,
Stan H.