SOLUTION: y=x^2-9 For what positive value of x is d smaller?

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Question 803330: y=x^2-9
For what positive value of x is d smaller?
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
y=x^2-9
For what positive value of x is d smaller?
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Where is d?
Smaller than what?