document.write( "Question 148242: If f(x)= -3x +4, find f(-2) and f(a+2) \n" ); document.write( "
Algebra.Com's Answer #108650 by mangopeeler07(462)\"\" \"About 
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If f(x)= -3x +4, find f(-2) and f(a+2)\r
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\n" ); document.write( "\n" ); document.write( "Plug in -2 and a+2 for x.\r
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\n" ); document.write( "\n" ); document.write( "f(-2)=-3(-2)+4
\n" ); document.write( "f(-2)=6+4
\n" ); document.write( "f(-2)=10\r
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\n" ); document.write( "\n" ); document.write( "f(a+2)=-3(a+2)+4
\n" ); document.write( "f(a+2)=-3a-6+4
\n" ); document.write( "f(a+2)=-3a-2
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