SOLUTION: State the domain of the function. Justify answer f(x)=x squar ed-3x

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Question 989597: State the domain of the function. Justify answer f(x)=x squar
ed-3x
Answer by farohw(175) About Me  (Show Source):
You can put this solution on YOUR website!

f(x) = x^2 - 3x is a parabola and polynomial. The domain of a polynomial is all real numbers.
To find the reals we want to omit from the domain of f(x) = x^2 - 3x:

x^2 - 3x is x(x-3) = 0

Therefore, x = 0 and x-3 = 0 --> x = 3

So the domain is all real numbers except {0,3}.
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