document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=121167>Question 121167</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The graph of an exponential function of the form y=a(b)^x passes through the points (1,2.8) and (2,3.92). What is the value of b? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #88927 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=88927\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The graph of an exponential function of the form y=a(b)^x passes through the points (1,2.8) and (2,3.92). What is the value of b?<BR>\n" );
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document.write( "Substitute into y = a(b^x) to get two equations:<BR>\n" );
document.write( "3.92=a*b^2<BR>\n" );
document.write( "2.8 =a*b<BR>\n" );
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document.write( "Divide the 2nd equation into the 1st to get:<BR>\n" );
document.write( "b = 3.92/2.8<BR>\n" );
document.write( "b = 1.4<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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