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Which statement is correct about the graph of the equations (18x+24y=54) and (3x+4y=11)?

Answer and explanation

Correct answer: Lines are distinct parallel

To classify two linear equations graphically, compare the ratios of corresponding coefficients. If the ratios of the coefficients of \(x\) and \(y\) are equal but the ratio of the constants is different, the equations represent distinct parallel lines. Such lines have the same direction but lie at different positions, so they never meet.

For these equations, \(18/3=6\) and \(24/4=6\), so the variable coefficients are proportional. However, \(54/11\ne6\). Therefore the constant terms do not have the same proportion. The lines are parallel but not coincident, and the pair has no common solution. Thus the correct graph description is option C, distinct parallel lines.

Related tags

Linear EquationsHardGraphParallel Lines

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