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If (-4,5) is a vertex of a square and on...

If (-4,5) is a vertex of a square and one of its diagonal is 7x-y+8-0.Find the equation of other diagonal

A

`x+3y=21`

B

`2x-3y=7`

C

`x+7y=31`

D

`2x+3y+21`

Text Solution

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The correct Answer is:
C
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DISHA PUBLICATION-STRAIGHT LINES AND PAIR OF STRAIGHT LINES-EXERCISE 2: CONCEPT APPLICATOR
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