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Ans.
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The
given linear equation is 5x + ay = 19
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∵ the point (3,2) lies on the given graph
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∴ we can substitute the point x = 3 and y = 2
in given graph,
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∴ 5(3) + a(2) = 19
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∴ 15 + 2a = 19
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∴ 2a = 19 – 15
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∴ 2a = 4
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∴ a = 4/2
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∴ a = 2
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