Question

# If the straight line $$(3x + 4y + 5) + k (x + 2y - 3) = 0$$ is parallel to x - axis then the value of $$k$$ is

A
1
B
3
C
4
D
2

Solution

## The correct option is A $$-3$$$$(3+k)x+(4+2k)y+(5-3k)=0$$The line is parallel to the x-axis.So, x-component $$=0$$$$\Rightarrow3+k=0$$$$\Rightarrow k=-3$$Maths

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