For what value of k, the pair of equations 2x - 3y = 9 and kx - 9y = 18 represent parallel lines.

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Find the value of k so that the lines 2x � 3y = 9 and kx-9y =18 will be parallel. -------------- 2x � 3y = 9 slope = 2/3 ------------------- and kx-9y =18 slope = k/9 ----- Solve: k/9 = 2/3 k = 6 ==================== Cheers, Stan H. ====================

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