document.write( "Question 224940: I am really having a hard time figuring this problem out.
\n" ); document.write( "Evaluate f(x)=4x^2-7forf(1/2)
\n" ); document.write( "I don't really know what this ^ means \n" ); document.write( "

Algebra.Com's Answer #167979 by Earlsdon(6294) $\"\"$ $\"About$

You can put this solution on YOUR website!
First, x^2 is a way of indicating the square of x. The ^ means \"raise to the power\" and the number is the exponent.
\n" ); document.write( " $\"f%28x%29+=+4x%5E2-7\"$ To find $\"f%281%2F2%29\"$ , substitute $\"x+=+1%2F2\"$
\n" ); document.write( " $\"f%281%2F2%29+=+4%281%2F2%29%5E2-7\"$
\n" ); document.write( " $\"f%281%2F2%29+=+4%281%2F4%29-7\"$
\n" ); document.write( " $\"f%281%2F2%29+=+1-7\"$
\n" ); document.write( " $\"highlight%28f%281%2F2%29+=+-6%29\"$ \n" ); document.write( "

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