SOLUTION: what is the domain for fx=3x2-18x-1 what is the function value? ,min/max value , domain and range?

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Question 285711: what is the domain for fx=3x2-18x-1 what is the function value? ,min/max value , domain and range?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
what is the domain for f(x)=3x2-18x-1 what is the function value?
Domain: All Real Numbers.
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min/max value: max at -b/2a = 18/6 = 3
f(3) = 27 - 54 -1 = -28
min at (3,-28)
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range::::All Real Numbers >=-28
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graph%28400%2C300%2C-10%2C10%2C-30%2C10%2C3x%5E2-18x-1%29
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Cheers,
Stan H.