jee-main 2016 Q72

jee-main · India · 09apr Straight Lines & Coordinate Geometry Geometric Figure on Coordinate Plane

Two sides of a rhombus are along the lines, $x - y + 1 = 0$ and $7x - y - 5 = 0$. If its diagonals intersect at $(-1, -2)$, then which one of the following is a vertex of this rhombus?
(1) $(-3, -9)$
(2) $(-3, -8)$
(3) $\left(\frac{1}{3}, -\frac{8}{3}\right)$
(4) $\left(-\frac{1}{3}, -\frac{8}{3}\right)$

Two sides of a rhombus are along the lines, $x - y + 1 = 0$ and $7x - y - 5 = 0$. If its diagonals intersect at $(-1, -2)$, then which one of the following is a vertex of this rhombus?\\
(1) $(-3, -9)$\\
(2) $(-3, -8)$\\
(3) $\left(\frac{1}{3}, -\frac{8}{3}\right)$\\
(4) $\left(-\frac{1}{3}, -\frac{8}{3}\right)$

Paper Questions

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