document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=100001>Question 100001</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hello I have a couple of questions I need you to do for me! Thanks!!\r<BR>\n" );
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document.write( "1. Find both the x-intercept and the y-intercept of the line given by the equation \r<BR>\n" );
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document.write( "3x+7y-11=0\r<BR>\n" );
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document.write( "2. What is the slope of the line ? \r<BR>\n" );
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document.write( "4x-3y=-2\r<BR>\n" );
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document.write( "3. The cost of water use (in dollars) is a linear function of the amount of water used (in hundreds of cubic feet, HCF), as shown in the figure below. The cost for using 14  HCF of water is $31.40 , and the cost for using 47 HCF is $ 82.55  . What is the cost for using 26 HCF of water? <BR>\n" );
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document.write( " 4. Carmen is a software saleswoman. Carmen's monthly salary is  plus an additional  for every copy of Math is Fun she sells. \r<BR>\n" );
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document.write( "Let S represent Carmen's monthly salary (in dollars), and let N  represent the number of copies of Math is Fun that she sold. Write an equation relating  to S to N , and then graph your equation. \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 #72823 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=72823\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 1. Find both the x-intercept and the y-intercept of the line given by the equation <BR>\n" );
document.write( "3x+7y-11=0 <BR>\n" );
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document.write( "x-intercept: let y = 0 and solve for x: x=11/3<BR>\n" );
document.write( "y-intercept: let x = 0 and solve for y: y = 11/7<BR>\n" );
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document.write( "2. What is the slope of the line ? <BR>\n" );
document.write( "4x-3y=-2 <BR>\n" );
document.write( "slope = 4/3<BR>\n" );
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document.write( "3. The cost of water use (in dollars) is a linear function of the amount of water used (in hundreds of cubic feet, HCF), as shown in the figure below. The cost for using 14 HCF of water is $31.40 , and the cost for using 47 HCF is $ 82.55 . What is the cost for using 26 HCF of water?<BR>\n" );
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document.write( "You have two points: (14,31.40),(47,82.55)<BR>\n" );
document.write( "slope = [82.55-31.40]/[47-14] = 1.55<BR>\n" );
document.write( "Form of the equation: cost = slope(HCF count) + b<BR>\n" );
document.write( "31.40 = 1.55*14 + b<BR>\n" );
document.write( "b = 9.7<BR>\n" );
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document.write( "EQUATION:<BR>\n" );
document.write( "cost = 1.55(HCF count) 9.7<BR>\n" );
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document.write( "If HCF count = 26 then:<BR>\n" );
document.write( "price = 1.55*26+9.7<BR>\n" );
document.write( "price = 50<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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