## Need help verifying an answer about piecewise functions.

Complex numbers, rational functions, logarithms, sequences and series, matrix operations, etc.
rogermiranda
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Joined: Fri Apr 30, 2010 6:01 pm
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### Need help verifying an answer about piecewise functions.

Here is the problem:
Find the domain and range of this piecewise defined function;
f(x)= -2x^2 with restriction x greater than or equal to -2 and less than 1
-0.5 with restriction x=1
x with restriction x greater than 1

After graphing the piecewise functions, I determined that the domain = [-2, positive infinity]
and the range = [-8, 0] U (1, positive infinity].
The textbook has the answer D= [-1, positive infinity] and R= [-2, positive infinity].
Can someone please help me verify which answer is correct? Or maybe their both wrong? Thanks

stapel_eliz
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Joined: Mon Dec 08, 2008 4:22 pm
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I get the same answer you got. I'm guessing the book has a typo.

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