what value of m will make 4x-7y=5 and 9x + my = 3 parallel

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1 Answer

Two lines are parallel if their slopes are the same.

4x-7y=5, 7y=4x-5, y=4x/7-5/7 so the slope is 4/7.

9x+my=3, y=(3-9x)/m, so the slope is -9/m=4/7, m=-63/4.
by Top Rated User (1.1m points)

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