SOLUTION: Find the minimum value of y = 240 - x3 on the horizontal span from 0 to 4

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Question 1201979: Find the minimum value of y = 240 - x3 on the horizontal span from 0 to 4
Answer by greenestamps(13203) About Me  (Show Source):
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ANSWER: 176 (at x = 4)

On the given interval 0 to 4, x^3 is always positive; so the value of the given expression is minimum when x^3 (and therefore x) is maximum.