SOLUTION: Find B - A if the graph of Ax + By = 7 passes through (2,1) and is parallel to the graph of 2x - 7y = 3.
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Question 987771
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Find B - A if the graph of Ax + By = 7 passes through (2,1) and is parallel to the graph of 2x - 7y = 3.
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josgarithmetic(39620)
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The parallel condition means A=2 and B=-7. The point (2,1) will satisfy the given equation but not the unknown equation. No solution.
Ax+By=7 can NOT be both parallel to 2x-7y=3 AND pass through (2,1).