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Mathematics 8 Online
OpenStudy (anonymous):

Find the difference quotient and simplify your answer.

OpenStudy (anonymous):

\[f(x)=5x-x^2, \frac{ f(5+\Delta x) -f(5)}{ \Delta x }, \Delta x \neq 0\]

OpenStudy (mertsj):

\[f(5+\Delta x)=5(5+\Delta x)-(5+\Delta x)^2=25+5\Delta x-(25+10\Delta x+\Delta x^2)\]

OpenStudy (mertsj):

\[f(5)=0\]

OpenStudy (mertsj):

Substitute and simplify.

OpenStudy (anonymous):

oh. thank you!

OpenStudy (mertsj):

yw

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