If the line 3 x -4 y -5-7 x -8 y -9-0 is parallel to x axis then the value of - is A- 3-7B- -3-7C- 1-2D- -1-2

The correct option is B 3/7 nbsp;3x + 4y 5 + μ (7x+ 8y 9) = 0 nbsp; The line is parallel to x axis so the coefficient of x in the equation will be = 0 ...

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Standard XII

Mathematics

Directrix

If the line 3...

Question

If the line $3 x + 4 y - 5 + μ (7 x + 8 y - 9) = 0$ is parallel to $x$ axis then the value of $μ$ is

\frac{3}{7}

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- \frac{3}{7}

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\frac{1}{2}

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- \frac{1}{2}

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Solution

The correct option is B $- \frac{3}{7}$
$3 x + 4 y - 5 + μ (7 x + 8 y - 9) = 0$
The line is parallel to $x$ axis so the coefficient of $x$ in the equation will be $= 0$
$∴ 3 + 7 μ = 0 \Rightarrow μ = - \frac{3}{7}$

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If the line 3x+4y−5+μ(7x+8y−9)=0 is parallel to x axis then the value of μ is

The correct option is B −37 3x+4y−5+μ(7x+8y−9)=0 The line is parallel to x axis so the coefficient of x in the equation will be =0 ∴3+7μ=0⇒μ=−37

If the line $3 x + 4 y - 5 + μ (7 x + 8 y - 9) = 0$ is parallel to $x$ axis then the value of $μ$ is

The correct option is B $- \frac{3}{7}$
$3 x + 4 y - 5 + μ (7 x + 8 y - 9) = 0$
The line is parallel to $x$ axis so the coefficient of $x$ in the equation will be $= 0$
$∴ 3 + 7 μ = 0 \Rightarrow μ = - \frac{3}{7}$