SOLUTION: Find the maximum or the minimum value of f(x) = 5x2 − 9x + 1
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Question 1031182: Find the maximum or the minimum value of f(x) = 5x2 − 9x + 1
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
Find the maximum or the minimum value of f(x) = 5x2 - 9x + 1
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f'(x) = 10x - 9 = 0
x = 9/10
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Min: f(9/10) = 5*(9/10)^2 - 81/10 + 1 = -61/20
--> (9/10,-61/20)
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w/o calculus:
Min at x = -b/2a = 18/10 = 9/10
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