document.write( "Question 1126535: Algebra 2 lesson on radical and exponential functions\r
\n" ); document.write( "\n" ); document.write( "Find f(-3) and f(x+1) for the function \r
\n" ); document.write( "\n" ); document.write( "f(x)= 2^x \n" ); document.write( "

Algebra.Com's Answer #742858 by math_helper(2461) $\"\"$ $\"About$

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$\"+f%28x%29+=+2%5Ex+\"$
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\n" ); document.write( "\n" ); document.write( "To find f(a) just let x=a and plug into the function f(x):
\n" ); document.write( " $\"+f%28-3%29+=+2%5E%28-3%29+=+1%2F2%5E3+=+highlight%28+1%2F8+%29+\"$
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\n" ); document.write( "\n" ); document.write( "Similarly:
\n" ); document.write( " $\"+f%28x%2B1%29+=+highlight%282%5E%28x%2B1%29%29+\"$ which can also be written

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