Homework Help: algebra

Posted by Anonymous on Thursday, November 9, 2006 at 10:37pm.

Find the domain and range of the function.

1. f(x)= x^2-x

I got: Domain= All Real Numbers
Range= All Real Numbers > -1 (with a line under the greater than sign)

2. f(x)= 1-x^2
I got: Domain= All Real Numbers
Range= All Real Numbers < 1
(with a line under the less than sign)

Are these right? Thanks.

The second answer is correct, but the lowest possible value (Range lower limit) of x^2-x
is f(x) = -1/4, and occurs when x = 1/2

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