document.write( "Question 9342: Please show me how to solve this problem \r
\n" ); document.write( "\n" ); document.write( "find f(-3) if f(x)= 2x-1 \n" ); document.write( "
Algebra.Com's Answer #5052 by rapaljer(4671)\"\" \"About 
You can put this solution on YOUR website!
f(x) = 2x - 1\r
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\n" ); document.write( "\n" ); document.write( "First, this is a special notation that does NOT mean f times x. It is a special notation that is read \"f of x\", and it means that you are to substitute a value of x into this formula and simplify the result to find the value of the answer. It is MUCH easier than everyone can possibly imagine.\r
\n" ); document.write( "\n" ); document.write( "Given
\n" ); document.write( "f(x) = 2x - 1
\n" ); document.write( "f(-3) means that you sustitute the value of -3 in place of the x value(s).
\n" ); document.write( "f(-3) = 2(-3) - 1
\n" ); document.write( "f(-3) = -6 -1 = -7\r
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\n" ); document.write( "\n" ); document.write( "You didn't ask for it, but if you need another example, suppose you wanted to find f(9) or f(-7).\r
\n" ); document.write( "\n" ); document.write( "f(9) = 2(9) - 1 = 18-1 = 17\r
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\n" ); document.write( "\n" ); document.write( "f(-7) = 2(-7) - 1 = -14 -1 = -15\r
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\n" ); document.write( "\n" ); document.write( "R^2 at SCC\r
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