document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=486102>Question 486102</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hi! can you help me understand the meaning of algebra 2 functions?\r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #332358 by </B><A HREF=/tutors/aboutme.mpl?userid=richard1234><B>richard1234(7193)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richard1234><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=richard1234><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=332358\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Functions are just operations that map some number or set of numbers to another number or set of numbers. They are usually denoted f(x) = ... (or some other letter besides f), so if you define a function f(x) = 2x + 1, then you can evaluate f(x) for a given x value, for example f(4) = 2(4) + 1 = 9. Or, if g(x) = 5x^2 + x, then g(1) = 5(1)^2 + 1 = 6. </SPAN>\n" );
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