document.write( "Question 305452: Can someone please explain how to do this type of problem. Im putting two examples of the problems im trying to solve and my book doesnt explain them well\r
\n" ); document.write( "\n" ); document.write( "Find f(0) when f(x) = 3x^2 - 11x\r
\n" ); document.write( "\n" ); document.write( "Find f(0) when f(x) = 83 \n" ); document.write( "

Algebra.Com's Answer #218672 by solver91311(24713) $\"\"$ $\"About$

You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( "Any time you are given

(or

for that matter) and a definition of the function as an expression involving

, then you need to read it as \"the value of the function

is: \"\r
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\n" ); document.write( "\n" ); document.write( "So if the value of the function

, then the value of the function

.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Whatever is in the parentheses replaces

in the function definition -- then do the appropriate arithmetic.\r
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\n" ); document.write( "\n" ); document.write( "Also:\r
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\n" ); document.write( "\n" ); document.write( "If

, then

, or

, or, if

, then

\r
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\n" ); document.write( "\n" ); document.write( "Your other problem says that the value of the function at

is 83 no matter what the value of

might be. So,

means that

, and

\r
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\n" ); document.write( "\n" ); document.write( "John
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