1.

Two sides of a rhombus are along the lines, x-y+1 and 7x-y-5=0. If its diagonals interset at (-1,-2) then which one of the following is a vertex of this rhombus?

Answer»

(-3,-8)
`(1/3,-8/3)`
`(-10/3,-7/3)`
(-3,-9)

ANSWER :B


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