document.write( "Question 34607: For the system of linear equations in questions 1
\n" );
document.write( "- Determine how many solutions exist
\n" );
document.write( "- Use either elimination or substitution to find the solutions (if any)
\n" );
document.write( "- Graph the two lines, labeling the x-intercepts, y-intercepts, and points of intersection
\n" );
document.write( "3x + 7y = 3 and 12x + 28y = 16 \n" );
document.write( "
Algebra.Com's Answer #20929 by checkley71(8403)![]() ![]() ![]() You can put this solution on YOUR website! 3x+7y=3 \n" ); document.write( "12x+28y=16 multiplying equation 1 by -4 we get \n" ); document.write( "-12x-28y=-64 subtracting these equations we get \n" ); document.write( "----------- \n" ); document.write( "0x+0y=-48 or no intercept\r \n" ); document.write( "\n" ); document.write( "using the slope interception form we get y=-3/7x-3/7 & y=-3/7+4/7 thus the two equations have the same slope -3/7 ergo no interception. \n" ); document.write( " |