SOLUTION: Find the domain and range of the quadratic equation f(x)=x^2-8x+9.

Question 134683: Find the domain and range of the quadratic equation f(x)=x^2-8x+9.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Find the domain and range of the quadratic equation f(x)=x^2-8x+9.
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Domain: All Real Numbers
Range:
The minimum point is at (-b/2a, f(-b/2a)
-b/2a= 8/2 = 4
f(4) = 16-21+9 = 4
So Range is "all Real Numbers greater than or equal to 4".
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Cheers,
Stan H.
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