document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=150386>Question 150386</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Oh dear God please help me!!! We are studying Graphs of Exponential and Logarithmic Functions and I am so lost I'm about to send out the hound dogs, but seriously if someone could please help just get me started I would greatly appreciate it. <BR>\n" );
document.write( "I am supposed to Plot the graphs of the following functions:I don't understand how<BR>\n" );
document.write( "1. f(x) = 7x this x variable is actually an exponent so it is 7 to the x power<BR>\n" );
document.write( "2. f(x) = 4x - 3 the x-3 here is also an exponent so it reads 4 to the x-3 power<BR>\n" );
document.write( "3. f(x) = (1/5)x this is actually 1/5 to the x power again the x is an exponent<BR>\n" );
document.write( "4. f(x) = log3x \r<BR>\n" );
document.write( "\n" );
document.write( "Thank you guys for always helping me out. I can't wait till I get this degree so I can help yall out with some $$$.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #110311 by </B><A HREF=/tutors/aboutme.mpl?userid=scott8148><B>scott8148(6628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=scott8148><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=scott8148><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=110311\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> $$$, huh...WOW!!\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "plotting the graphs is straight forward (a graphing calculator would be a big help)<BR>\n" );
document.write( "__ the f(x) values are on the vertical (y) axis and the x values are on the horizontal axis<BR>\n" );
document.write( "__ find the f(x) values by \"plugging in\" values for x\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "1.  f(x)=7^x __ when x=0, f(x)=1 (this is the y-intercept) __ when x is 1, f(x)=7<BR>\n" );
document.write( "__ as x becomes a large NEGATIVE value, f(x) approaches zero (horizontal asymptote)\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "2.  f(x)=4^(x-3) __ when x=3, the exponent is 0 so f(x)=1 __ when x=0, f(x)=4^(-3) or 1/64<BR>\n" );
document.write( "__ same general shape as #1 with different y-intercept\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "3.  f(x)=(1/5)^x __ when x=0, f(x)=1 <BR>\n" );
document.write( "__ as x becomes a large POSITIVE value, f(x) approaches zero (horizontal asymptote)<BR>\n" );
document.write( "__ this graph is sort of a \"mirror image\" of #'s 1 and 2\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "4.  logarithms are NOT defined for negative quantities, so this graph is only on the right-hand side of the vertical axis<BR>\n" );
document.write( "__ as x approaches zero (very small fractions), f(x) approaches negative infinity (vertical asymptote) </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );