document.write( "Question 925811: Which function is an even function?\r
\n" ); document.write( "\n" ); document.write( " A. f(x) = 4x\r
\n" ); document.write( "\n" ); document.write( " B. f(x) = -x - 2\r
\n" ); document.write( "\n" ); document.write( " C. f(x) = 3x^2\r
\n" ); document.write( "\n" ); document.write( " D. f(x) = 2x^3 + 2
\n" ); document.write( "

Algebra.Com's Answer #569054 by tommyt3rd(5050)\"\" \"About 
You can put this solution on YOUR website!
C) because for any x, f(-x)=f(x)\r
\n" ); document.write( "\n" ); document.write( "
\n" ); document.write( "
\n" );