SOLUTION: What is the range of this function f(x)=x^2-25

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Question 1195871: What is the range of this function f(x)=x^2-25
Answer by ikleyn(52800)   (Show Source): You can put this solution on YOUR website!
.

Notice that the range of the function  y(x) = x^2  is from  0  to infinity,  i.e.  [0,oo),
which is obvious.

The range of the function  z(x) = x^2 - 25  is  25  units shifted down the range of the function  y(x).

Thus the range of the function  x^2-25  is  [-25,oo),  i.e.  from  -25  to infinity.



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