Question
The condition that the equation ax + by + c = 0 represent a linear equation in two variables is:
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a ≠ 0, b = 0
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b ≠ 0, a = 0
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a = 0, b = 0
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a ≠ 0, b ≠ 0
Solution
D.
a ≠ 0, b ≠ 0