Question

If the line ax+y=c is perpendicular to the line x-by=d, then b=

Answer 1

for line ax+y=c or y=-ax+c, gives the slope m=-a
x-by=d or y = x/b - d/b, gives the slope m=1/b
u know that 2 line was perpendicular when m1*m2 = -1
so, (-a)*(1/b) = -1
solve for b