Question

the slopes of perpendicular line segments are start fraction one over two end fraction and start fraction d over three end fraction full stop what is the value of d

Answer 1

1/2.....a perpendicular line will have negative reciprocal slopes...all that means is " flip " the slope and change the sign. So the negative reciprocal of 1/2 = -2/1 or just -2. so we have to make d/3 = -2.....so for that to happen, d has to be -6.