document.write( "Question 814183: Explain how you can tell(without graphing) whether a system of linear equations has one solution, no solutions, or infinitely many solutions. Be sure to account for linear equations that are not functions. \n" ); document.write( "
Algebra.Com's Answer #490148 by TimothyLamb(4379)\"\" \"About 
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put both equations in slope-intercept form: y = mx + b
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\n" ); document.write( "if the slopes are equal and the y-intercepts are equal, the equations describe the same line and the solution is infinitely many points.
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\n" ); document.write( "if the slopes are equal and the y-intercepts are not equal, the two lines do not intercept and have no points in common.
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\n" ); document.write( "if either equation is of the form: x = a
\n" ); document.write( "that equation describes a vertical line and its slope is undefined.
\n" ); document.write( "vertical lines intercept all non-vertical lines.
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\n" ); document.write( "if both lines are vertical and they are not the same line, the two lines do not intercept and have no points in common.
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\n" ); document.write( "otherwise, the lines intercept at exactly one point.
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\n" ); document.write( "Solve and graph linear equations:
\n" ); document.write( "https://sooeet.com/math/linear-equation-solver.php
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\n" ); document.write( "Solve quadratic equations, quadratic formula:
\n" ); document.write( "https://sooeet.com/math/quadratic-formula-solver.php
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\n" ); document.write( "Convert fractions, decimals, and percents:
\n" ); document.write( "https://sooeet.com/math/fraction-decimal-percent.php
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\n" ); document.write( "Calculate and graph the linear regression of any data set:
\n" ); document.write( "https://sooeet.com/math/linear-regression.php
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