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Plotting a Straight Line

If the line r...

Question

If the line represented by the equation $3 x + 4 y + c = 0$ passes through the origin, then $c$ =.

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Solution

The correct option is C $0$
If the line represented by the equation $3 x + 4 y + c = 0$ passes through the origin, then the point $(0, 0)$ satisfies the equation.
$∴ 3 (0) + 4 (0) + c = 0$
$⟹ c = 0$

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