Precalc0110to0111-page8 - If we substitute x = 90 , we...

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(Section 1.10: Difference Quotients) 1.10.8 • The unit for the difference quotient is still dollars widget , though we tend to omit it when a variable is present in our final expression.
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Unformatted text preview: If we substitute x = 90 , we obtain 50 dollars widget , our answer to Example 2....
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