Prove the parallel property. If y = mx + b and y = m'x + b' are

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Prove the parallel property. If y = mx + b and y = m'x + b' are the equations of two lines, then the two lines have a point in common if and only if the equation mx + b = m'x + b' has a solution for x.
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Finite Mathematics and Its Applications

ISBN: 978-0134768632

12th edition

Authors: Larry J. Goldstein, David I. Schneider, Martha J. Siegel, Steven Hair

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