Q.

The value of 'K'  such that line 3x+4y+5k(x+y+3)=0  parallel to Yaxis is

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a

2

b

1

c

3

d

4

answer is D.

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Detailed Solution

3x+4y+5k(x+y+3)=03x+4y+5kxky3k=0(3k)x+(4k)y+(53k)=0

Slope of parallel to Yaxis is undefined

(3k)4k=104k=0k=4

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The value of 'K'  such that line 3x+4y+5−k(x+y+3)=0  parallel to Y−axis is