document.write( "Question 1191745: Let f(x)=3x+2. Find f(f(1)) \n" ); document.write( "

Algebra.Com's Answer #823576 by ikleyn(52781) $\"\"$ $\"About$

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document.write( "First calculate f(1) by substituting the value of 1 instead of x into the formula for f(x)\r\n" );
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document.write( "    f(1) = 3*1 + 2 = 3 + 2 = 5.\r\n" );
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document.write( "To find f(f(1)),  replace the interior f(1) by 5, since you just calculated it. \r\n" );
document.write( "You will get\r\n" );
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document.write( "    f(f(1)) = f(5) = 3*5 + 2 = 15 + 2 = 17.\r\n" );
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document.write( "ANSWER.  f(f(1)) = 17, and you know now how to find it.\r\n" );
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