document.write( "Question 238284: Hi, I need help with another problem. The question is: Is f(4) a zero of the function: f(x)=3x-12? why or why not. How would I figure that out and what is a zero of a function? Thank you! \n" ); document.write( "
Algebra.Com's Answer #175135 by Alan3354(69443)\"\" \"About 
You can put this solution on YOUR website!
Is f(4) a zero of the function: f(x)=3x-12? why or why not.
\n" ); document.write( "Sub 4 for x
\n" ); document.write( "f(4) = 3*4 - 12 = 0
\n" ); document.write( "So it is.
\n" ); document.write( "-----------
\n" ); document.write( "How would I figure that out and what is a zero of a function?
\n" ); document.write( "It depends on the type of function. You can always sub a value and see if it is a zero.
\n" ); document.write( "
\n" );