Question

What is the direct and inverse variation? If y = kx is a direct variation equation in which 0b or is b>a?

Answer 1

y=b when x=a
b=ka
b/a =k
0<b/a<1
Therefore, b<a
If b>a , b/a >1 <---contradiction with k<1

Answer 2

you can look at an expample to check,
let, k=0.5 & a=2