The equations of the acute and the obtuse angle bisectors of the lines and are…

MATHEMATICS · Single correct · A Level · Mathematics · Coordinate geometry in the (x y) plane · Coordinate geometry in the (x y) plane

Problem

The equations of the acute and the obtuse angle bisectors of the lines

5x + 12y + 13 = 0

and

5x - 12y + 13 = 0

are respectively (1)

y = 0, x = -\frac{13}{5}

(2)

y = 0, x = \frac{13}{5}

(3)

x = 0, y = -\frac{13}{5}

(4)

x = 0, y = \frac{13}{5}