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OpenStudy (anonymous):
Evaluate the polynomial 6x-7 for 1/2n^2 - 1/2n and y=2 A. 15 B. -20 C. 4 D. -16
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OpenStudy (vishal_kothari):
what is y and n here?
OpenStudy (anonymous):
thats the way its written, i could'nt understand it myself
OpenStudy (anonymous):
\[f(x)=6x-7\rightarrow f(1/2n^2-1/2n)=3/n^2-3/n-7\]
OpenStudy (anonymous):
\[f(2)=6(2)-7=5\]
OpenStudy (anonymous):
I think it is just a straightforward substitution.
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OpenStudy (anonymous):
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