Question

13. If the lines y + px = 1 and y-qx = 2 are
perpendicular, then which one of the
following is correct?
(a) pq +1 = 0
(b) p+q +1 = 0
(c) pq -1 = 0
(d) p-q+1 = 0​

Answer 1

Answer:

c. pq-1=0

Step-by-step explanation:

y=-px+1 , y=qx+2

m1=-p,m2=q

given that lines are perpendicular.

my.m2=-1

-p.q=-1

pq-1=0

Answer 2

Answer:

a-px ,b-1/2 p2 X2 +1/4tath is a ans