document.write( "Question 83298: Can I get a quik hand on these two, \r
\n" ); document.write( "\n" ); document.write( "if f(x)=5x-1 then how would i figure out f(a - 2)\r
\n" ); document.write( "\n" ); document.write( "If an inventor charges $4 per unit, then her profit for producing and selling x units is given by the function\
\n" ); document.write( " P(x)=2.25x-7000
\n" ); document.write( "a what is her profit after selling 2,000 units
\n" ); document.write( "b profit after 5,000 units
\n" ); document.write( "c. what would the break-even point for sales.\r
\n" ); document.write( "\n" ); document.write( "thank you ahead of time.
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Algebra.Com's Answer #59807 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
if f(x)=5x-1 then how would i figure out f(a - 2)
\n" ); document.write( "f(a-2) = 5(a-2) -1
\n" ); document.write( "=5a-11
\n" ); document.write( "----------------\r
\n" ); document.write( "\n" ); document.write( "If an inventor charges $4 per unit, then her profit for producing and selling x units is given by the function\
\n" ); document.write( " P(x)=2.25x-7000
\n" ); document.write( "a what is her profit after selling 2,000 units
\n" ); document.write( "P(2000) = 2.25*2000-7000 = -2500 which is a loss of $2500
\n" ); document.write( "b profit after 5,000 units
\n" ); document.write( "P(5000) = 2.25*5000-7000 = $4259
\n" ); document.write( "c. what would the break-even point for sales.
\n" ); document.write( "Let P=0
\n" ); document.write( "Then 0 = 2.25x-7000
\n" ); document.write( "x= 3111.111...
\n" ); document.write( "Rounding down the break-even occurs when she produces 3111 units.
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.\r
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