SOLUTION: What are the domain and range of y=3x^-2? thank you

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Question 964939: What are the domain and range of y=3x^-2? thank you
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
y=3x%5E%28-2%29=3%2Fx%5E2
So all values are allowed in the domain except x%3C%3E0.
Since the denominator is a square, it's always positive.
So the entire function is always positive.
Asymptote as x approaches infinity is y=0.
So the range is (0,infinity).
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