document.write( "Question 170730This question is from textbook Intermediate Algebra
\n" ); document.write( ": I'm 60 years old and I decided to go back to show and this math is a little hard please please help.\r
\n" ); document.write( "\n" ); document.write( " Plot the graph of the equations 4x - 6y = 2 and 2x - 3y = 1 and interpret the result. \r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "thank you in advance.
\n" ); document.write( "
\n" ); document.write( "

Algebra.Com's Answer #126038 by jim_thompson5910(35256)\"\" \"About 
You can put this solution on YOUR website!
\r
\n" ); document.write( "\n" ); document.write( "Start with the given system of equations:\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"system%284x-6y=2%2C2x-3y=1%29\"\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "In order to graph these equations, we must solve for y first.\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Let's graph the first equation:\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"4x-6y=2\" Start with the first equation.\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"-6y=2-4x\" Subtract \"4x\" from both sides.\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"y=%282-4x%29%2F%28-6%29\" Divide both sides by \"-6\" to isolate \"y\".\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"y=%282%2F3%29x-1%2F3\" Rearrange the terms and simplify.\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Now let's graph the equation:\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " Graph of \"y=%282%2F3%29x-1%2F3\".\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "-------------------------------------------------------------------\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Now let's graph the second equation:\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"2x-3y=1\" Start with the second equation.\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"-3y=1-2x\" Subtract \"2x\" from both sides.\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"y=%281-2x%29%2F%28-3%29\" Divide both sides by \"-3\" to isolate \"y\".\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"y=%282%2F3%29x-1%2F3\" Rearrange the terms and simplify.\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Now let's graph the equation:\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " Graph of \"y=%282%2F3%29x-1%2F3\".\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "-------------------------------------------------------------------\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Now let's graph the two equations together:\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " Graph of \"y=%282%2F3%29x-1%2F3\" (red). Graph of \"y=%282%2F3%29x-1%2F3\" (green)\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "From the graph, we can see that one line is right on top of the other one, which means that they intersect an infinite number of times. \r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "So there are an infinite number of solutions. This means that the system of equations is consistent and dependent.\r
\n" ); document.write( "\n" ); document.write( "
\n" ); document.write( "
\n" );