SOLUTION: what is the range of f(x)=x^2-4

Algebra ->  Functions -> SOLUTION: what is the range of f(x)=x^2-4      Log On


   

Question 829779: what is the range of f(x)=x^2-4
Answer by reviewermath(1029) About Me  (Show Source):
You can put this solution on YOUR website!
Question:
what is the range of f(x)=x^2-4
-------------------------------------
Answer:
The graph of y = x%5E2+-+4 is a parabola that opens upward.
The lowest point (vertex) is at (0, -4).
Therefore, the range is {y| y ≥ -4} or [-4,∞).