document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=149828>Question 149828</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0131953648/algebrahomeworkh></A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> Can you please help with this 3 part problem. The first part is to solve 3x+4y=8 for y  The second part is when graphed this equation would be a line.  By examining your answer to part a, what is the slope and y-intercept of this line?      The third part is using your answer from part a, find the corresponding value of y when x =8 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #109954 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=109954\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Can you please help with this 3 part problem. The first part is to solve 3x+4y=8 for y The second part is when graphed this equation would be a line. By examining your answer to part a, what is the slope and y-intercept of this line? The third part is using your answer from part a, find the corresponding value of y when x =8<BR>\n" );
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document.write( "1. Solving for y means getting the eqn into the form:  y = <BR>\n" );
document.write( "3x+4y = 8<BR>\n" );
document.write( "Subtract 3x from both sides<BR>\n" );
document.write( "4y = -3x + 8<BR>\n" );
document.write( "Divide by 4<BR>\n" );
document.write( "y = (-3/4)x + 2<BR>\n" );
document.write( "That's all.<BR>\n" );
document.write( "2.  This is the classic slope-intercept form, y = mx + b, where m is the slope and b is the y-intercept (where the line crosses the y-axis, which is also the value at x = 0)<BR>\n" );
document.write( "So the slope is -3/4, and the y-intercept is 2, or the point (0,2).<BR>\n" );
document.write( "3. Just evaluate y = (-3/4)x + 2 for x = 8<BR>\n" );
document.write( "y = (-3/4)*8 + 2<BR>\n" );
document.write( "y = -6 + 2<BR>\n" );
document.write( "y = -4 at x = 8, the point (8,-4)<BR>\n" );
document.write( " </SPAN>\n" );
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