document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=429543>Question 429543</A>: <I><SPAN STYLE=\"word-break: break-all;\"> how do you write an exponential function y=ab raised to the x with the points (0,1), (2,4) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #298323 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=298323\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> how do you write an exponential function y=ab raised to the x with the points (0,1), (2,4)<BR>\n" );
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document.write( "Form: y = ab^x<BR>\n" );
document.write( "Solve for a and for b:<BR>\n" );
document.write( "Using (0,1) you get: 1 = ab^0; 1 = a*1; a = 1<BR>\n" );
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document.write( "So, y = 1*b^x<BR>\n" );
document.write( "Solve for \"b\":<BR>\n" );
document.write( "Using (2,4) you get: 4 = b^2<BR>\n" );
document.write( "b = 2<BR>\n" );
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document.write( "Equation:<BR>\n" );
document.write( "y = b^2<BR>\n" );
document.write( "===============<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "=============== </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );