What is the domain and range of $y=3x^2$ ?

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Answer 1 · 2015-09-01T10:45:34

Domain: $x in RR$
Range: $y in RR [0,+oo)$

$y=3x^2$
is defined for all Real values of $x$

$3x^2 >= 0 and rarr +oo$ as $abs(x) rarr oo$

What is the domain and range of y=3x^2 y=3x^2?