SOLUTION: What is the range of the function y=x^2+3

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Question 1019463: What is the range of the function y=x^2+3
Found 2 solutions by FrankM, fractalier:
Answer by FrankM(1040) About Me  (Show Source):
You can put this solution on YOUR website!
Domain is all possible X values, Range is all Ys .
The minimum Y here is 3, so Y is equal or greater than 3.

Answer by fractalier(6550) About Me  (Show Source):
You can put this solution on YOUR website!
The domain of a function are all ALLOWABLE values of x.
The range of a function are all POSSIBLE values of y.
For y = x^2 + 3, the lowest value y can ever have is when x = 0. That would be 3.
Thus the range of the function is y >= 3, or [3, infinity).