document.write( "Question 765270: Solve the problem.\r
\n" ); document.write( "\n" ); document.write( "The owner of a video store has determined that the cost C, in dollars, of operating the store is approximately given by c(x)= 2x^2 -26x+770 where x is the number of videos rented daily. Find the lowest cost to the nearest dollar.
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Algebra.Com's Answer #466076 by lwsshak3(11628) $\"\"$ $\"About$

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Solve the problem.
\n" ); document.write( "The owner of a video store has determined that the cost C, in dollars, of operating the store is approximately given by c(x)= 2x^2 -26x+770 where x is the number of videos rented daily. Find the lowest cost to the nearest dollar.
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\n" ); document.write( "c(x)= 2x^2 -26x+770
\n" ); document.write( "This is an equation of a parabola that opens upward (function has a minimum)
\n" ); document.write( "Its standard form of equation: $\"y=A%28x-h%29%5E2%2Bk\"$ , k=minimum value
\n" ); document.write( "complete the square:
\n" ); document.write( "c(x)= 2(x^2 -13x+169/4)-169/2+770
\n" ); document.write( "c(x)=2(x-13/2)^2+685.5
\n" ); document.write( "lowest cost=$686 \n" ); document.write( "

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