document.write( "Question 80793: f(x)= x2 - 7x + 10; find (a) f (0), (b) f (5), and (c) f (-2) \n" ); document.write( "

Algebra.Com's Answer #57956 by bucky(2189) $\"\"$ $\"About$

You can put this solution on YOUR website!
Given:
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\n" ); document.write( " $\"f%28x%29=+x%5E2+-+7x+%2B+10\"$
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\n" ); document.write( "find (a) f (0), (b) f (5), and (c) f (-2)
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\n" ); document.write( "Problem (a) tells you to go to the given equation, replace every x with a zero, and then
\n" ); document.write( "simplify the result.
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\n" ); document.write( "Replace every x with zero to get:
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\n" ); document.write( " $\"f%280%29=+0%5E2+-+7%2A0+%2B+10+=+0+%2B+0+%2B+10+=+10\"$
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\n" ); document.write( "So for (a) you have $\"f%280%29+=+10\"$
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\n" ); document.write( "Problem (b) ... same thing only replace every x with 5 to get:
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\n" ); document.write( " $\"f%285%29=+5%5E2+-+7%2A5+%2B+10+=+25+-+35+%2B+10+=+0\"$
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\n" ); document.write( "So for (b) you have $\"f%285%29+=+0\"$ .
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\n" ); document.write( "For problem (c) ... same thing again only this time replace every x with -2 to get:
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\n" ); document.write( " $\"f%28-2%29=+%28-2%29%5E2+-+7%2A%28-2%29+%2B+10+=+4+%2B+14+%2B+10+=+28\"$
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\n" ); document.write( "So for (c) you have $\"f%28-2%29+=+28\"$
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\n" ); document.write( "Hope this helps you to understand what the problem was asking you to do and how you should
\n" ); document.write( "go about doing problems like these.
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